Author: "Arts et Métiers Sciences et Technologies" - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Arts et Métiers Sciences et Technologies"' showing total 12,143 results

Start Over Author "Arts et Métiers Sciences et Technologies"

12,143 results on '"Arts et Métiers Sciences et Technologies"'

1. Improvement of CNN-Based Anisotropic Magnetostatic Field Computation via Adaptive Data Subset Selection

Author: Ruohan Gong, Zuqi Tang, L2EP - Équipe Outils et Méthodes Numériques (OMN), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Université catholique de Lille (UCL)-Université catholique de Lille (UCL), and ANR-20-CE42-0009,WISSTITWIN,Devloppement de technologies miniaturisées de capteurs SAW multiparamétres pour l'implementation du jumeau numérique des machines électriques.(2020)
Subjects: [PHYS]Physics [physics], [SPI]Engineering Sciences [physics], Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials
Abstract: International audience; A numerical issue arises when we extend the convolutional neural network (CNN) U-net to the anisotropic magnetostatic field computation. The output magnetic field has a significant gradient with respect to the input geometry parameter, which introduces inevitable errors in the training process to degrade the performance of deep learning (DL). To address this issue, the subset selection approach is utilized to divide the whole database into several subsets, where the samples are assigned according to the gradient between the input and output. Then these subsets with different sample densities are combined into a global one. Taking the uniform dataset with the same sample size as a comparison, the influence of subset selection on DL is investigated by comparing the performance of CNN on different datasets. Numerical experiments illustrate that the adaptive subset selection can be employed to improve the accuracy and efficiency of the CNN network.
Published: 2022
Full Text: View/download PDF

2. Error Estimator for Cauer Ladder Network Representation

Author: Shingo Hiruma, Stephane Clenet, Hajime Igarashi, Thomas Henneron, Hokkaido University [Sapporo, Japan], L2EP - Équipe Outils et Méthodes Numériques (OMN), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Error estimation, Electrical and Electronic Engineering, Sciences de l'ingénieur, Model order reduction (MOR), Cauer ladder network (CLN), Maxwell’s equations, Electronic, Optical and Magnetic Materials
Abstract: International audience; The Cauer Ladder Network (CLN) method enables to construct a reduced based circuit model of analytical or numerical models, e.g. Finite Element (FE) model, under quasistatic approximation. This paper proposes an estimator which provides guaranteed upper bounds of the truncation error due to the CLN method. The error estimator is tested on an analytical model and a Finite Element model to validate the approach.
Published: 2022
Full Text: View/download PDF

3. Bounding the Number of Minimal Transversals in Tripartite 3-Uniform Hypergraphs

Author: Bazin, Alexandre, Beaudou, Laurent, Kahn, Giacomo, Khoshkhah, Kaveh, WEB Architecture x Semantic WEB x WEB of Data (WEB3), Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier (LIRMM), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), Laboratoire d'Informatique, de Modélisation et d'Optimisation des Systèmes (LIMOS), Ecole Nationale Supérieure des Mines de St Etienne-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), Université Clermont Auvergne (UCA)-Université Clermont Auvergne (UCA), Décision et Information pour les Systèmes de Production (DISP), Université Lumière - Lyon 2 (UL2)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Institute of Computer Science [University of Tartu, Estonie], University of Tartu, Le2i - CheckSem, School of Computer Science and Informatics [Dublin], University College Dublin [Dublin] (UCD)-University College Dublin [Dublin] (UCD)-Laboratoire Electronique, Informatique et Image [UMR6306] (Le2i), Université de Bourgogne (UB)-École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-École Nationale Supérieure d'Arts et Métiers (ENSAM), HESAM Université (HESAM)-HESAM Université (HESAM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), Ecole Nationale Supérieure des Mines de St Etienne-Université Clermont Auvergne (UCA)-Centre National de la Recherche Scientifique (CNRS), Institute of Computer Science (University of Tartu) (CS), Laboratoire Lorrain de Recherche en Informatique et ses Applications (LORIA), Institut National de Recherche en Informatique et en Automatique (Inria)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), National Research University Higher School of Economics, Faculty of Computer Science (HSE-CS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université Lumière - Lyon 2 (UL2), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Arts et Métiers (ENSAM), HESAM Université (HESAM)-HESAM Université (HESAM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Arts et Métiers (ENSAM), HESAM Université (HESAM)-HESAM Université (HESAM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)-Institut National de Recherche en Informatique et en Automatique (Inria), Ecole Nationale Supérieure des Mines de St Etienne (ENSM ST-ETIENNE)-Centre National de la Recherche Scientifique (CNRS)-Université Clermont Auvergne (UCA)-Institut national polytechnique Clermont Auvergne (INP Clermont Auvergne), and EUROSTAR PSDP project.'Fonds Européen de Développement Régional (FEDER)' program though project AAP ressourcement S3 – DIS 4 (2015-2018).Estonian Research Council, ETAG (Eesti Teadusagentuur), through PUT Exploratory Grant #620.
Subjects: FOS: Computer and information sciences, Mathematics::Combinatorics, k)-Hypergraphs, Discrete Mathematics (cs.DM), General Computer Science, Formal Concept Analysis, Hypergraph Transversals, 3)-Hypergraphs, Polyadic Concept Analysis, (k, [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM], Hypergraphs, Triadic Concept Analysis, Theoretical Computer Science, Measure and conquer, (3, Minimal transversal, Computer Science::Discrete Mathematics, [MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO], FOS: Mathematics, Mathematics - Combinatorics, Discrete Mathematics and Combinatorics, Combinatorics (math.CO), Computer Science - Discrete Mathematics
Abstract: We focus on the maximum number of minimal transversals in 3-partite 3-uniform hypergraphs on n vertices. Those hypergraphs (and their minimal transversals) are commonly found in database applications. In this paper we prove that this number grows at least like 1.4977^n and at most like 1.5012^n.
Published: 2023
Full Text: View/download PDF

4. Interaction intermodale de la stéréoscopie, de la déformation de surface et de la retour tactile sur la perception de la rugosité de la texture dans un état tactile actif

Author: Brahimaj, Detjon, Berthaut, Florent, Giraud, Frédéric, Semail, Betty, L2EP - Équipe Commande, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 (CRIStAL), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), Université de Lille, Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancé - USR 3380 (IRCICA), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Ines di Loreto, and European Project: 860114,H2020,H2020-MSCA-ITN-2019 ,MULTITOUCH(2020)
Subjects: Surface haptic, Perception de texture, Stereoscopic vision, Multimodal interactions, Vision stéréoscopique, Texture perception, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC], Interactions multimodales, Haptique de surface
Abstract: IHM'23 - 34e Conférence Internationale Francophone sur l'Interaction Humain-MachineAFIHM, Université de Technologie de Troyes; International audience; Research has shown that interaction with tactile surfaces can benefit from the addition of haptic feedback. The perception of this feedback is influenced by other modalities, visual and auditory, making it possible to reinforce or enrich it. However, the effect of visual depth cues, such as stereoscopic rendering and surface deformation, on the tactile perception of textures has not been studied yet, especially in an active touch condition. In this paper, we investigate the perceptual interaction between stereoscopy, surface deformation, and haptic feedback in the condition of active touch implemented using friction modulation based on ultrasonic vibrations. The experimental study is based on a Visual-Tactile exploration of a virtual texture. Our objective is to understand the interaction of one modality over the other for roughness and depth perception. Participants were asked to make visual and tactile texture roughness judgments and to estimate the depth of deformation of the texture below their fingers. Our results suggest that: 1) perceived tactile roughness can be modified by adding stereoscopic rendering and/or visual surface deformation but only for smooth tactile textures, 2) perceived visual roughness can be modified by increasing the tactile roughness, 3)the overall roughness (Visual + Tactile) is mainly impacted by the tactile perception.; La recherche a montré que l’interaction avec les surfaces peut bénéficier de l’ajout de retour haptique. La perception de cette retour haptique est influencée par d’autres modalités, telles que visuelles et auditives, ce qui permet de le renforcer ou de l’enrichir. Cependant, l’effet des textures 3D dans la réalité augmentée (AR), comme le rendu stéréoscopique et la déformation de surface, sur la perception tactile des textures n’a pas encore été étudié, en particulier dans une condition tactile active. Dans cet article, nous étudions l’interaction perceptuelle entre la stéréoscopie, la déformation de surface et la retour haptique dans un état actif. La retour haptique a été mise en oeuvre en utilisant une modulation par friction basée sur des vibrations à ultrasons, tandis que la retour visuelle a été implémentée avec une paire de lunettes 3D en AR. L’étude expérimentale est une exploration visuelle-tactile d’une texture virtuelle. Notre objectif est de comprendre l’interaction d’une modalité sur l’autre pour la rugosité et la perception de la profondeur. Nous avons demandé aux participants de porter des jugements de rugosité de texture visuelle et tactile et d’estimer la profondeur de la déformation de la texture sous leurs doigts. Nos résultats suggèrent que : 1) la rugosité tactile perçue peut être modifiée en ajoutant un rendu stéréoscopique et / ou une déformation de surface visuelle mais uniquement pour les textures tactiles lisses. 2) La rugosité visuelle perçue peut être modifiée en augmentant la rugosité tactile. 3) La rugosité globale (visuel + tactile) est principalement impactée par la perception tactile.
Published: 2023

5. Machine learning for optimal flow control in an axial compressor

Author: M. A. Elhawary, Francesco Romanò, Jean-Christophe Loiseau, Antoine Dazin, Laboratoire de Mécanique des Fluides de Lille – Kampé de Fériet - UMR 9014 (LMFL), Centrale Lille-ONERA-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Laboratoire de Dynamique des Fluides (DynFluid), Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Arts et Métiers Sciences et Technologies, and HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)
Subjects: [PHYS.PHYS.PHYS-FLU-DYN]Physics [physics]/Physics [physics]/Fluid Dynamics [physics.flu-dyn], [SPI]Engineering Sciences [physics], [STAT.ML]Statistics [stat]/Machine Learning [stat.ML], Biophysics, General Materials Science, [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph], Surfaces and Interfaces, General Chemistry, Biotechnology
Abstract: Air jets for active flow control have proved effective in postponing the onset of stall phenomenon in axial compressors. In this paper, we use a combination of machine learning and genetic algorithm to explore the optimal parameters of air jets to control rotating stall in the axial compressor CME2. Three control parameters are investigated: the absolute injection angle, the number of injector pairs and the injection velocity. Given an experimental dataset, the influence of the air jet parameters on the surge margin improvement and power balance is modeled using two shallow neural networks. Parameters of the air jets are then optimized using a genetic algorithm for three rotational velocities, i.e., Ω=3200RPM,4500RPMand6000RPM. First, surge margin improvement and power balance are being maximized independently. Then, a bi-objective optimization problem is posed to explore the trade-off between the two competing objectives. Based on the Pareto front, results suggest that a globally optimal set of parameters is obtained for a velocity ratio (defined as the ratio of the injection velocity to the rotor tip speed) ranging from 1.1 to 1.6 and an injection angle attack varying from 1∘to11∘. These outcomes point out a potential generalization of the control strategy applicable to other compressors.
Published: 2023
Full Text: View/download PDF

6. Flexible Simulation of an Electric Vehicle to Estimate the Impact of Thermal Comfort on the Energy Consumption

Author: David Ramsey, Alain Bouscayrol, Loic Boulon, Anatole Desreveaux, Alexandre Vaudrey, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), L2EP - Équipe Commande, Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Institut de Recherche sur l'Hydrogène, Université du Québec à Trois-Rivières (UQTR), Université de Lille, Centrale Lille, Arts et Métiers Sciences et Technologies, Junia HEI, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP], and Université du Québec à Trois-Rivières [UQTR]
Subjects: climatic conditions, HVAC system, cabin heating, energetic macroscopic representation, air conditioning, electric vehicle, flexible simulation, Automotive Engineering, Energy Engineering and Power Technology, Transportation, Electrical and Electronic Engineering, [SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph]
Abstract: International audience; The energy consumption of electric vehicles depends on the traction energy but also on the thermal comfort energy. Some studies lead to the estimation of this energy consumption from real measurements on different driving and climatic conditions. However, those results rely on a large number of vehicle tests, which is time consuming. Moreover, the impacts of the different subsystems cannot be differentiated in such global studies. A flexible simulation tool can help to analyze the impact of the different parts of a vehicle. This paper proposes a multi-physical parametrized model of an electric vehicle including the traction and comfort subsystems. A flexible model of a Renault Zoe is developed thanks to the energetic macroscopic representation. This model is validated by experimental tests of the real vehicle. Then, the impact of the HVAC (heating, ventilation, and air conditioning) subsystem is studied for different driving cycles and climatic conditions. In very cold conditions, the use of the HVAC subsystem represents an increase of up to 248% of the total energy consumption, compared to summer conditions.
Published: 2022
Full Text: View/download PDF

7. Optimal scheduling strategy and benefit allocation of multiple virtual power plants based on general nash bargaining theory

Author: Xingyu Yan, Ciwei Gao, Hao Ming, Dhaker Abbes, Bruno Francois, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), L2EP - Équipe Réseaux, Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, and National Natural Science Foundation of China (No. 52107077, and No. 52207081)Natural Science Foundation of Jiangsu Province (BK20210244)
Subjects: [SPI]Engineering Sciences [physics], Virtual power plant, Distributed energy resources, Energy Engineering and Power Technology, Peer-to-peer trading, Smart grid, Nash bargaining, [MATH]Mathematics [math], Electrical and Electronic Engineering, Game theory
Abstract: International audience; The benefits of small-scale renewable energy resources are restricted by a feed-in-tariff strategy that works with distribution grids only. Virtual Power Plant (VPP) aggregates diverse distributed energy resources on the demand side for efficient control, which can improve their revenue and encourage the growth of renewable energy. Based on the general Nash bargaining theory, this paper proposes a multi-VPP energy-sharing mechanism. This approach enables VPPs to increase their revenue by engaging in peer-topeer energy transactions. First, a general Nash bargaining-based model is proposed for multi-VPPs energy sharing considering peer-to-peer energy transactions. The model is then decomposed into two subproblems: minimizing the total cost of the VPP energy-sharing alliance, and the cost allocation of peer-to-peer energy transactions. Considering the privacy protection of VPPs, the first subproblem is solved by a distributed algorithm based on the alternating direction multiplier method. In the second subproblem, due to the introduction of a bargaining factor that is positively related to each VPP's contribution to energy sharing alliance, the cost allocation better reflects their contribution. The numerical test demonstrates the proposed energy-sharing mechanism, with little computational complexity, delivers a cost distribution result that is comparable to the classical Shapley value while promoting the development of renewable energy resources.
Published: 2023
Full Text: View/download PDF

8. Transient Stability Assessment and Enhancement of Grid-Forming Converters Embedding Current Reference Saturation as Current Limiting Strategy

Author: Bruno Francois, Taoufik Qoria, Antoine Bruyere, Ebrahim Rokrok, Xavier Guillaud, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), L2EP - Équipe Réseaux, and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies
Subjects: transient stability, Stability criteria, Computer science, Mode (statistics), Critical clearing time, Energy Engineering and Power Technology, Converters, current saturation algorithm, Power system stability, Stability (probability), Power (physics), Transient analysis, [SPI]Engineering Sciences [physics], inertial effect, Current limiting, Control theory, Voltage sag, Transient (oscillation), [MATH]Mathematics [math], Electrical and Electronic Engineering, Current (fluid), grid-forming control
Abstract: This paper deals with the transient stability of a grid-forming converter while embedding a current reference saturation strategy. The novelty of this work consists in investigating the impact of the current reference angle on the transient stability. In case of a balanced voltage sag, analytical formulas to forecast the critical clearing angle (CCA) and critical clearing time (CCT) while considering different values of the current reference angle are derived. It has been demonstrated that the choice of this angle is constrained by the ability of the power converter to switch back to the voltage control mode. Based on that, its optimal value that enhances the transient stability and allows a switching from the current control mode to the voltage control mode is designed. Thereafter, the effectiveness of this optimal choice to guarantee the stability in case of a phase shift caused by a line re-closing event has been conrmed. Time-domain simulations (performed in Matlab-Simulink environment) and experimental tests validate the correctness of the theoretical approaches.
Published: 2022
Full Text: View/download PDF

9. Parametric Geometric Metamodel of Nonlinear Magnetostatic Problem Based on POD and RBF Approaches

Author: Thomas Henneron, Allaa Eddine Boumesbah, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), L2EP - Équipe Outils et Méthodes Numériques (OMN), and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies
Subjects: Radial Basis Function, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Nonlinear system, Proper Orthogonal Decomposition, Applied mathematics, Model Order Reduction, mesh deformation, Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Mathematics, Parametric statistics, Metamodeling
Abstract: International audience; A parametric geometric metamodel is built for a nonlinear magnetostatic problem, using proper orthogonal decomposition approach combined with radial basis functions interpolation. Furthermore, the geometrical variation of the problem is modeled using a RBF interpolation for smooth mesh deformation. The metamodel is applied for a single-phase EI inductance, the aim is to create precise flux cartographies based on few solutions of the original finite element (FE) model. The results show that the POD-RBF approach can reduce efficiently the evaluation time of a parametric nonlinear magnetostatic problem.
Published: 2022
Full Text: View/download PDF

10. Compelling Evidence for the Role of Retained Austenite in the Formation of Low Cycle Fatigue Extrusions in a 9Ni Steel

Author: Mahira A. Cota Araujo, Jean-Marc Olive, Gilles Pecastaings, Ahmed Addad, Jérémie Bouquerel, Jean-Bernard Vogt, Unité Matériaux et Transformations - UMR 8207 (UMET), Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Institut de Mécanique et d'Ingénierie de Bordeaux (I2M), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)-École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche Paul Pascal (CRPP), and Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: advanced electron microscopy, Metals and Alloys, cyclic plasticity, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], General Materials Science, martensite, [CHIM.MATE]Chemical Sciences/Material chemistry, magnetic force microscopy
Abstract: International audience; The 9Ni martensitic steels have a martensitic microstructure which contains retained austenite after solution heat treatment and water quenching. Under low cycle fatigue, extrusions formed at the surface of the material and were very close to martensite lath boundaries. The presence of retained austenite at martensite laths has been highly suspected to impact the cyclic plasticity. However, the nano-size of the austenitic phase makes it difficult to obtain clear evidence of its role. The paper focuses on the precise determination of these extrusions and the link with the retained austenite. The paper also emphasizes the innovative and promising use of magnetic force microscopy (MFM) to document cyclic plasticity of a 9Ni steel. It is shown that electron microscopies, even the most advanced ones, may be unsuccessful in reaching this goal, while magnetic force microscopy (MFM) overcame the difficulty. This technique has allowed imaging of both the extrusion and the retained austenite. These analyses confirm that the fatigue extrusions originated from a local displacement of martensite lath. The proposed mechanism, in which the retained austenitic film acts as a lubricant film or greasy film promoting a flowing of martensite along the interfaces, is unambiguously demonstrated.
Published: 2023
Full Text: View/download PDF

11. Goal-oriented error estimation based on equilibrated flux reconstruction for the approximation of the harmonic formulations in eddy current problems

Author: Creusé, Emmanuel, Nicaise, Serge, Tang, Zuqi, Laboratoire de Matériaux Céramiques et de Mathématiques (CERAMATHS), Université Polytechnique Hauts-de-France (UPHF)-INSA Institut National des Sciences Appliquées Hauts-de-France (INSA Hauts-De-France), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Reliable numerical approximations of dissipative systems (RAPSODI ), Laboratoire Paul Painlevé (LPP), Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Inria Lille - Nord Europe, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), L2EP - Équipe Outils et Méthodes Numériques (OMN), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: Finite element method, Maxwell equations, Potential formulations, [MATH]Mathematics [math], Goal-oriented a posteriori estimators
Abstract: In this work, we propose an a posteriori goal-oriented error estimator for the harmonic (A − φ) formulation arising in the modeling of eddy current problems, approximated by nonconforming finite element methods. It is based on the resolution of a dual problem associated with the initial one. For each of these two problems, a guaranteed equilibrated estimator is developed using some flux reconstructions. These fluxes also allow to obtain a goal-oriented error estimator that is fully computable and can be split in a principal part and a reminder one. Our theoretical results are illustrated by numerical experiments.
Published: 2023

12. A piezoelectric based sensor system designed for in vivo skin measurements

Author: Chen, Yisha, Lemaire-Semail, Betty, Giraud, Frédéric, Hayward, Vincent, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Université de Lille, L2EP - Équipe Commande, Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancé - USR 3380 (IRCICA), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Institut des Systèmes Intelligents et de Robotique (ISIR), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Interactions Multi-échelles, and Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)
Subjects: [SPI.AUTO]Engineering Sciences [physics]/Automatic
Published: 2023

13. Fabrication, and direct current and cryogenic analysis of SF6-treated AlGaN/GaN Schottky barrier diodes

Author: Quentin Fornasiero, Nicolas Defrance, Sylvie Lepilliet, Vanessa Avramovic, Yvon Cordier, Eric Frayssinet, Marie Lesecq, Nadir Idir, Jean-Claude De Jaeger, Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Puissance - IEMN (PUISSANCE - IEMN), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Plateforme de Caractérisation Multi-Physiques - IEMN (PCMP - IEMN), Centre de recherche sur l'hétéroepitaxie et ses applications (CRHEA), Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS)-Université Côte d'Azur (UCA), L2EP - Équipe Électronique de puissance (EP), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, This work was supported by the technology facility network RENATECH. This research work was partially undertaken with support of IEMN fabrication (CMNF) and characterization (PCMP) platforms., PCMP CHOP, Renatech Network, CMNF, Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 [IEMN], Puissance - IEMN [PUISSANCE - IEMN], Plateforme de Caractérisation Multi-Physiques - IEMN [PCMP - IEMN], Centre de recherche sur l'hétéroepitaxie et ses applications [CRHEA], and L2EP - Équipe Électronique de puissance [EP]
Subjects: Schottky barrier diode, Cryogenics, Rectifier, Process Chemistry and Technology, Electrical properties and parameters, Thermionic emission, Electronic band structure, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, [SPI]Engineering Sciences [physics], Semiconductors, Materials Chemistry, Contact impedance, Heterostructures, Electrical and Electronic Engineering, Inductively coupled plasma, Instrumentation
Abstract: Schottky contacts on fluorine implanted AlGaN/GaN heterostructures with the ideality factor close to unity and low on-voltage threshold are presented in this paper. An SF6 plasma anode pretreatment followed by a specific low-temperature annealing is also compared to a nonannealed sample. In addition, physical-model parameters are extracted by means of cryogenic temperature measurements to understand the conduction mechanisms involved in annealed diodes, showing better DC performances than their nonannealed counterparts. Furthermore, annealing induces a decrease of the ideality factor, which sets the field-enhanced thermionic emission as the main conduction mechanism, and reduces the tunneling reverse current leakage. This effect is attributed to the recovery of the plasma-induced damages.
Published: 2023
Full Text: View/download PDF

14. Enhanced parametric shape descriptions in PGD-based space separated representations

Author: Francisco Chinesta, Jean Louis Duval, Amine Ammar, Mohammad Javad Kazemzadeh-Parsi, Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), ESI Group (ESI Group), Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM), and Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Arts et Métiers Sciences et Technologies
Subjects: Computer science, Computation, Sciences de l'ingénieur, Space (mathematics), 01 natural sciences, Domain (mathematical analysis), 010305 fluids & plasmas, Systems engineering, [SPI]Engineering Sciences [physics], TA168, Modelling and Simulation, 0103 physical sciences, Complex geometries, 0101 mathematics, Representation (mathematics), Engineering (miscellaneous), Parametric statistics, PGD, Sequence, Applied Mathematics, Space separated representation, Mechanics of engineering. Applied mechanics, TA349-359, Computer Science Applications, 010101 applied mathematics, NURBS, Modeling and Simulation, Product (mathematics), Computer-aided, Algorithm
Abstract: Space separation within the Proper Generalized Decomposition—PGD—rationale allows solving high dimensional problems as a sequence of lower dimensional ones. In our former works, different geometrical transformations were proposed for addressing complex shapes and spatially non-separable domains. Efficient implementation of separated representations needs expressing the domain as a product of characteristic functions involving the different space coordinates. In the case of complex shapes, more sophisticated geometrical transformations are needed to map the complex physical domain into a regular one where computations are performed. This paper aims at proposing a very efficient route for accomplishing such space separation. A NURBS-based geometry representation, usual in computer aided design—CAD—, is retained and combined with a fully separated representation for allying efficiency (ensured by the fully separated representations) and generality (by addressing complex geometries). Some numerical examples are considered to prove the potential of the proposed methodology.
Published: 2021
Full Text: View/download PDF

15. Carbon care action of a European research project on electrified vehicles

Author: Lepoutre, Amandine, Bouscayrol, Alain, Irimia, Cristi, Husar, Calin, Kalogiannis, Theodoros, Ahmed, Mariam, Martis, Claudia, Zuber, Dragan, Phetsinorath, Damien, Gao, Fei, van Balen, Wieteke, Birtas, Adrian, Lecoutere, Johan, Université de Lille, Centrale Lille, Arts et Métiers Sciences et Technologies, Junia HEI, Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697, Siemens Industry Software S.r.l., Vrije Universiteit Brussel [Bruxelles] [VUB], VALEO, Technical University of Cluj-Napoca, TÜV SÜD, Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) [FEMTO-ST], Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Vrije Universiteit Brussel [Bruxelles] (VUB), Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), and European Project: 824256,H2020,H2020-LC-GV-2018,PANDA(2019)
Subjects: [SPI]Engineering Sciences [physics], research, greenhouse gases emissions, Assessment method
Abstract: International audience; A carbon care action has been developed for a European research project focused on the development of greener vehicles. The aim of this action is to reduce and mitigate the greenhouse gases emissions due the project activities. The classical carbon assessment has been extended to consider all the activities of an international research project. For the 3.5 years project, 209 tons of CO2eq have been estimated as GHG emissions. The most important part is related to the transport despite a significant reduction of travel during the COVID-19 pandemic.; Une action Carbon Care a été menée dans le cadre d'un projet européen portant sur le développement de véhicules plus verts. L'objectif de cette action est de réduire et de compenser les émissions de gaz à effet de serre générées par les activités du projet. L'évaluation carbone classique a été étendue de façon à prendre en compte toutes les activités d'un projet de recherche international. Pour les 3,5 années du projet, les émissions de GES ont été estimées à 209 tonnes de CO2eq. La part la plus importante étant celle des transports malgré la réduction significative des voyages liée à la pandémie de Covid.
Published: 2022
Full Text: View/download PDF

16. Modeling and Minimization of the Parasitic Capacitances of Single-Layer Toroidal Inductors

Author: Florentin Salomez, Arnaud Videt, Nadir Idir, L2EP - Équipe Électronique de puissance (EP), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Université de Lille, Centrale Lille, Arts et Métiers Sciences et Technologies, Junia HEI, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP], and Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697
Subjects: [SPI]Engineering Sciences [physics], parasitic capacitance, Common-mode chokes, electromagnetic compatibility (EMC), equivalent parallel capacitance (EPC), inductor, modeling, Electrical and Electronic Engineering
Abstract: International audience; High-frequency power converters need electromagnetic interferences filters using common and differential mode chokes with low parasitic capacitance to comply with the electromagnetic compatibility standards. This article proposes a modeling method of this capacitance and ways to minimize it. The studied components are ring core inductors with magnetic materials considered as perfect conductors or with high permittivity, such as nanocrystalline material and most Mn-Zn ferrite materials. In comparison to other work in the literature, the proposed approach takes into account the curvature of the turn, in addition to the coating of the core and the insulation layer of the wire. The hypotheses, used in this article to simplify the real geometry, are compatible with two-dimensional (2-D) approaches to compute the parasitic interturns and turn–core capacitances. These capacitances are evaluated thanks to the 2-D finite element method. The obtained model allows accurate evaluation of the effect of turn–core space on the parasitic capacitance, and enables to reduce its value with a limited impact on the volume of the magnetic component.
Published: 2022
Full Text: View/download PDF

17. Assessment of Phase Transformations in Binary Fe–Mn Alloys: Effects of Composition and of Plastic Strain

Author: Artem Arlazarov, Hatem S. Zurob, R. Young, J. Fuller-Thomson, Olivier Bouaziz, McMaster University [Hamilton, Ontario], ArcelorMittal, Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3), Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Labex DAMAS, Université de Lorraine (UL), ANR-11-LABX-0008,DAMAS,Design des Alliages Métalliques pour Allègement des Structures(2011), and Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies
Subjects: Materials science, Alloy, chemistry.chemical_element, Thermodynamics, 02 engineering and technology, Manganese, engineering.material, Plasticity, ε-Martensite, SFE, Strain, [SPI]Engineering Sciences [physics], Phase (matter), Materials Chemistry, ComputingMilieux_MISCELLANEOUS, α′-Martensite, Austenite, Strain (chemistry), 020502 materials, Metals and Alloys, Phase transformation, Condensed Matter Physics, Microstructure, 0205 materials engineering, chemistry, Mechanics of Materials, Martensite, engineering
Abstract: International audience; A simple, first order description of the formation of ε- and α′-martensite in meta-stable austenitic Fe–Mn alloys containing 12–35 wt% Mn was developed. Given the initial volume fractions of ε- and α′-martensite in the non-deformed material, it is possible to calculate the evolution of phase fractions as a function of applied strain. An accurate estimate of the initial amounts of ε- and α′-martensite based solely on the Mn content of the alloy, could not be obtained due to the important role of microstructure features and processing conditions on the martensitic transformations.
Published: 2021
Full Text: View/download PDF

18. Electromagnetic performance of Ti6Al4V and AlSi7Mg0.6 waveguides with laser beam melting (LBM) produced and abrasive flow machining (AFM) finished internal surfaces

Author: Mickaël Rivette, Frédéric Segonds, Ferdinando Salvatore, Joël Rech, Corinne Dupuy, Patrice Peyre, Mathieu François, Simon Turpault, Mehdi Mimouna, Sangil Han, Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM), Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), École Centrale de Lyon (ECL), Université de Lyon, Laboratoire Conception de Produits et Innovation (LCPI), Arts et Métiers Sciences et Technologies, Laboratoire de Conception Fabrication Commande (LCFC), Université de Lorraine (UL)-Arts et Métiers Sciences et Technologies, and Thales SIX GTS France
Subjects: 0209 industrial biotechnology, Materials science, Abrasive flow machining, business.industry, Atomic force microscopy, General Physics and Astronomy, Titanium alloy, 02 engineering and technology, Sciences de l'ingénieur, 021001 nanoscience & nanotechnology, Electronic, Optical and Magnetic Materials, law.invention, [SPI]Engineering Sciences [physics], 020901 industrial engineering & automation, law, Electronic, Surface roughness, Optoelectronics, Optical and Magnetic Materials, Electrical and Electronic Engineering, 0210 nano-technology, business, Waveguide, Laser beams
Abstract: International audience; Metal additive manufacturing processes, such as laser beam melting (LBM), can play a key role in developing antenna-feed chains because monolithic and multifunctional parts can be manufactured with high geometric freedom in the design phase. Using LBM technology, lighter and more compact antennas can be produced and manufac-turing costs can be reduced. However, the surface roughness of internal surfaces in waveguides produced by LBM is much higher (about 10 μm Ra) than that produced by conventional manufacturing tech-nologies. Consequently, such high surface roughness of the internal surface can affect electrical current propagation through the waveguide and corresponding transmitted power. In this paper, abrasive flow machining (AFM) was used to reduce the surface roughness of the internal surfaces of four different waveguides used at both K and Q bands. A significant reduction in the transmission loss at both K and Q bands was observed as their internal surface rough-ness decreased from about 10 μmto1μm Ra. This was assumed to be due to an increase of the internal surface electrical conductivity with the decrease of roughness in waveguides channels.
Published: 2021
Full Text: View/download PDF

19. Low-frequency ultrasound device for pressure ulcer diagnosis

Author: Sales de Castro, Elis Marina, Giraud, Frédéric, Semail, Betty, Université de Lille, Centrale Lille, Arts et Métiers Sciences et Technologies, Junia HEI, Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), and European Project: 811965,H2020,H2020-MSCA-ITN-2018,STINTS(2019)
Subjects: [SPI]Engineering Sciences [physics]
Abstract: International audience
Published: 2022

20. Design Method of a High Frequency GaN-based Half-Bridge with Bottom-Side Cooled Transistors Using Multi-PCB Assembly

Author: Pace, Loris, Chevalier, Florian, Duquesne, Thierry, Idir, Nadir, Ampère, Département Energie Electrique (EE), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), École polytechnique universitaire de Lille (Polytech Lille), L2EP - Équipe Électronique de puissance (EP), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Université catholique de Lille (UCL)-Université catholique de Lille (UCL), and Université de Lille
Subjects: [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Parasitic inductance, [SPI.NRJ]Engineering Sciences [physics]/Electric power, Power Density Optimization, Thermal Design, Gallium Nitride (GaN), Half Bridge, [SPI.TRON]Engineering Sciences [physics]/Electronics, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract: International audience; This paper proposes a Multi-PCB (M-PCB) design of a half-bridge using bottom-side cooled GaN transistors with optimal layout and thermal management. The fabrication process only requires limited technological capabilities and is well-suited for industrial applications. Electrical and thermal performances are evaluated by measurements and simulation and compared with previous works.
Published: 2022

21. Influence of Current Collapse due to Vds Bias Effect on GaN-HEMTs Id-Vds Characteristics in Saturation Region

Author: Lu, Xuyang, Videt, Arnaud, Li, Ke, Faramehr, Soroush, Igic, Petar, Idir, Nadir, Université de Lille, Centrale Lille, Arts et Métiers Sciences et Technologies, Junia HEI, Coventry University, Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: [SPI]Engineering Sciences [physics], Double pulse test, Device characterisation, Switching losses, Gallium Nitride (GaN), Threshold voltage shift
Abstract: International audience; A new method is proposed in this paper to investigate the influence of current collapse effect on the Id-Vds characteristics of GaN-HEMTs in high voltage region based on a modified H-bridge circuit. The measured Id-Vds characteristics with and without the Vds bias are compared, which shows the effect of charge trapping due to the Vds bias on device Id-Vds characteristics in saturation region. These data will be used for a device model including the current collapse effect in full Id-Vds region.
Published: 2022

22. Comparison of scapula soft tissue artefact compensation methods during manual wheelchair locomotion

Author: ROUVIER, Théo, LIVET, C., LOMBART, Antoine, DUMONT, G., PONTONNIER, C., SAURET, Christophe, PILLET, Hélène, Institut de Biomécanique Humaine Georges Charpak (IBHGC), Université Sorbonne Paris Nord-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Institution Nationale des Invalides - Centre d’Etudes et de Recherche sur l’Appareillage des Handicapés (INI/CERAH), École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, Université de Rennes (UR), Analysis-Synthesis Approach for Virtual Human Simulation (MIMETIC), Université de Rennes 2 (UR2)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-RÉALITÉ VIRTUELLE, HUMAINS VIRTUELS, INTERACTIONS ET ROBOTIQUE (IRISA-D5), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), and Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)
Subjects: Rehabilitation, Biophysics, Orthopedics and Sports Medicine, [PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph], Mécanique: Biomécanique [Sciences de l'ingénieur]
Abstract: Two third of manual wheelchair (MWC) users report suffering or having suffered from shoulder pain or injury [1]. To favour the understanding of these disorders, it is crucial to quantify the shoulder kinematics and kinetics during MWC locomotion [2]. However, soft tissue artefacts (STA) are particularly present at the scapula, making it difficult to accurately track the bone motion [3], motivating researchers to propose compensation methods based on acromion or scapula spine marker clusters and a calibration pose [4]. Apart from invasive or irradiative methods, the reference method to localize the scapula bone is based on external palpation generally through the use of a scapula palpator (SP) [5]. In this study, we propose to compare the scapula kinematics reconstructed from a cluster with STA compensation based on one or two calibration static poses during the push phase with the reference method using a SP. ANR-19-CE19-0007
Published: 2022
Full Text: View/download PDF

23. AIOT: the All-in-1 IoT Educational Tool You Need

Author: Thonier, Charles, Watteyne, Thomas, Garde, François, Razafindralambo, Tahiry, Marcon, Bertrand, Mise en réseau fiable, sans fil à faible consommation et micro-robotique (AIO), Inria de Paris, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), École supérieure d’Ingénieurs Réunion Océan Indien (ESIROI), Université de La Réunion (UR), Ecole Nationale Supérieure d'Arts et Métiers - Cluny (ENSAM - Cluny), École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Arts et Métiers Sciences et Technologies, and HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)
Subjects: [INFO.INFO-NI]Computer Science [cs]/Networking and Internet Architecture [cs.NI], [INFO.INFO-ES]Computer Science [cs]/Embedded Systems
Abstract: International audience
Published: 2022

24. Effect of dry friction on a parametrically excited nonlinear oscillator

Author: BENACCHIO, Simon, GIRAUD-AUDINE, Christophe, THOMAS, Olivier, Laboratoire d’Ingénierie des Systèmes Physiques et Numériques (LISPEN), Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: Mécanique: Vibrations [Sciences de l'ingénieur], [SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph]
Abstract: International audience; This study proposes to investigate the effects of dry friction on the behaviour of a parametrically excited nonlinear oscillator using a pendulum as example. A harmonic balance method and time integration simulations are used to respectively compute and validate the solutions of the problem and their stability. The effects of dry friction on the behaviour of the system are discussed.
Published: 2022

25. A normal form-based power system out-of-step protection

Author: Nnaemeka Sunday Ugwuanyi, Xavier Kestelyn, Olivier Thomas, Bogdan Marinescu, Bin Wang, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Alex Ekwueme Federal University Ndufu-Alike, Ikwo (AE-FUNAI), Laboratoire d’Ingénierie des Systèmes Physiques et Numériques (LISPEN), Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), École Centrale de Nantes (Nantes Univ - ECN), Nantes Université (Nantes Univ), and National Renewable Energy Laboratory (NREL)
Subjects: Mécanique: Vibrations [Sciences de l'ingénieur], Out-of-step detection, Normal form, Transient stability, Energie électrique [Sciences de l'ingénieur], [SPI.NRJ]Engineering Sciences [physics]/Electric power, [SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph], Energy Engineering and Power Technology, Oscillation frequency drift, Electrical and Electronic Engineering
Abstract: International audience; This paper proposes a new system-level application for monitoring out-of-step (OOS) events in power systems. As already known, amplitude-dependent frequency shift is a nonlinear phenomenon of electromechanical oscillations under large disturbances. The frequency shift indicates the system’s nearness to instability. This new tool utilizes the Normal Form method to identify the named phenomenon, leading to accelerated OOS detection. The proposed strategy is illustrated and compared to the equal-area criterion method in a single-machine-infinite-bus power system. Extensive tests on IEEE 3- and IEEE 50-machine power systems prove the efficacy and potential of the proposed method for online warnings of instability and ranking of vulnerable system modes.
Published: 2022
Full Text: View/download PDF

26. Comparison of dynamic models for a DC railway electrical network including an AC/DC bi-directional power station

Author: N’guessan Kouassi, Christophe Saudemont, Tony Letrouve, Bruno Francois, Nicolas Navarro, Khaled Almaksour, Youssef Krim, Benoit Robyns, Lionel Taunay, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Université Félix Houphouët-Boigny (UFHB), École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL), Biogéosciences [UMR 6282] (BGS), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Centrale Lille, L2EP - Équipe Réseaux, Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Département recherche et développements (R&D - SNCF), and SNCF
Subjects: Numerical Analysis, General Computer Science, Power station, Computer science, Applied Mathematics, [SPI.NRJ]Engineering Sciences [physics]/Electric power, Automotive engineering, Theoretical Computer Science, law.invention, Regenerative brake, Real-time simulation, law, Modeling and Simulation, Electrical network, Inverter, Train, Electric power, ComputingMilieux_MISCELLANEOUS, Efficient energy use
Abstract: To face environmental issues, SNCF, the French railway, has chosen to improve the energy efficiency of its electrical power system by investigating solutions for regenerative braking. With the contribution of Railenium, a research and test center in railway activities, they aim to recover the braking energy by setting up a reversible inverter in the DC substation ”Massena”. The issue is to test, implement and compare various control solutions to increase the energy efficiency with minimum impacts on the railway operation. In this paper, a simulation model for studying a reversible power substation is addressed by considering AC and DC equivalent electrical sources. The proposed model provides a reliable tool for analyzing the behavior of the railway electrical network during specially braking mode. In order to validate this model, its simulation results are compared with the ones obtained from Esmeralda, the SNCF professional software. A first configuration is led without the inverter and gives certified Esmeralda results and validates the proposed model despite some gaps in powers and voltages due to differences in input data and models. A second comparison with inverter is presented to highlight the main difference between the proposed model and Esmeralda. In addition, laboratory experimental activities are put forward to investigate the proposed model by using power-hardware-in-the-loop simulations. Finally, a simulation test under MATLAB software with fifty train’s traffic is presented to estimate the energy saving thanks to the installed inverter. For this latter case study, the system sent back to the national AC grid around 6.9% of the total energy consumed by all trains.
Published: 2021
Full Text: View/download PDF

27. A Novel Five-Phase Fractional Slot Concentrated Winding with Low Space Harmonic Contents

Author: B. Zhao, E. Semail, Jinlin Gong, Frederic Gillon, T. Tong, Yanliang Xu, N. K. Nguyen, Shandong Jiaotong University [Jinan], Nanchang University, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Centrale Lille-Haute Etude d'Ingénieurs-Université de Lille-Arts et Métiers Sciences et Technologies, and HESAM Université (HESAM)-HESAM Université (HESAM)
Subjects: Materials science, Stator, Energie électrique [Sciences de l'ingénieur], 02 engineering and technology, Topology, 01 natural sciences, 7. Clean energy, 5-phase permanent magnet (PM) machine, law.invention, Harmonic analysis, law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, Winding factor, Astrophysics::Solar and Stellar Astrophysics, Torque ripple, Electrical and Electronic Engineering, Physics::Atmospheric and Oceanic Physics, Electromagnétisme [Sciences de l'ingénieur], 010302 applied physics, Total harmonic distortion, [SPI.NRJ]Engineering Sciences [physics]/Electric power, 020208 electrical & electronic engineering, Finite element analysis, Electronic, Optical and Magnetic Materials, [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Magnetomotive force, Harmonics, Physics::Space Physics, Harmonic, Low-harmonic contents
Abstract: International audience; In this article, a novel five-phase fractional-slot concentrated winding (FSCW) with 20-slot/22-pole is presented. It benefits notonly the advantages of conventional FSCW but also weak space harmonics of magnetomotive force (MMF). The winding allowseliminating the first sub-order harmonic. The new layout of the winding topology is obtained by a combination of stator shifttechnique of the winding in the slots with a special coupling of the windings (star-pentagon), using winding function theory. Thehigh performances of the new winding layout are validated using the finite element method (FEM). Compared to the conventional winding, the winding factor and the total harmonic distortion (THD) of MMF are improved by 1.3% and 2.2%, respectively. With the same injection of current density, the average output torque is increased by 1% and the torque ripple is decreased by 60%.The eddy current losses in the permanent magnets (PMs) at rated speed (600 r/min) and 2100 r/min speed are improved by 67% and 56%, respectively.
Published: 2021
Full Text: View/download PDF

28. Consumers’ sensitivities and preferences modelling and integration in a decentralised two levels energy supervisor

Author: Sabine Kazmierczak, Benoit Durillon, Christophe Saudemont, Arnaud Davigny, Florentin Salomez, Hervé Barry, Benoit Robyns, L2EP - Équipe Électronique de puissance (EP), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Haute Etude d'Ingénieurs-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Centrale Lille-Haute Etude d'Ingénieurs-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: General Computer Science, Computer science, 010103 numerical & computational mathematics, 02 engineering and technology, computer.software_genre, 7. Clean energy, 01 natural sciences, Theoretical Computer Science, News aggregator, Demand response, [SPI]Engineering Sciences [physics], 0202 electrical engineering, electronic engineering, information engineering, 0101 mathematics, ComputingMilieux_MISCELLANEOUS, Numerical Analysis, Supervisor, business.industry, Applied Mathematics, [SPI.NRJ]Engineering Sciences [physics]/Electric power, Environmental economics, Grid, Electrical grid, Renewable energy, Energy management system, 13. Climate action, Modeling and Simulation, 020201 artificial intelligence & image processing, Electricity, business, computer
Abstract: To address the new challenges arising from the higher penetration of renewable energy in electrical grid, Demand Response (DR) aims to involve the residential consumers in the grid equilibrium. Ensuring benefits for both utility and users requires the consumers sensitivities to be understood and then included in the Energy Management System (EMS). For this purpose, the cost is the predominant and most often only factor taken into account in the literature, although in the residential sector other concerns influencing electricity consumption behaviour have been observed. This paper presents a two levels EMS applied to a neighbourhood of consumers mathematically modelled at the level of their appliances and incorporating 5 consumers profiles along three sensitivities: cost, environment and appliances shifting comfort. The first level is a day ahead supervision based on a multi-agent optimisation lead by a central aggregator but performed locally by the household using Dynamic Programming (DP), thus ensuring privacy protection for the stakeholders. The second level is a real time supervision using the same decentralised structure and based on fuzzy logic. Both levels are evaluated in this paper, with a focus on the balance between grid and consumers objectives.
Published: 2021
Full Text: View/download PDF

29. Investigation of Current Collapse Mechanism on AlGaN/GaN Power Diodes

Author: Martin Doublet, Nicolas Defrance, Etienne Okada, Loris Pace, Thierry Duquesne, Bouyssou Emilien, Arnaud Yvon, Nadir Idir, Jean-Claude De Jaeger, Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520 (IEMN), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Puissance - IEMN (PUISSANCE - IEMN), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-JUNIA (JUNIA), Plateforme de Caractérisation Multi-Physiques - IEMN (PCMP - IEMN), Ampère, Département Energie Electrique (EE), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-École Centrale de Lyon (ECL), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Université de Lille, L2EP - Équipe Électronique de puissance (EP), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, STMicroelectronics [Tours] (ST-TOURS), Funding: This work was supported by IPCEI French NANO 2022 program supporting the joint lab IEMN—STMicroelectronics., Acknowledgments: This work has been supported by the certified PCMP platform (CHOP service) from Lille University (IEMN), Laboratoire commun STMicroelectronics-IEMN T1, and PCMP CHOP
Subjects: [PHYS]Physics [physics], diode, Computer Networks and Communications, gallium nitride (GaN), dynamic on-resistance (RON), current collapse, power electronics, Arrhenius, origins of defects, [SPI]Engineering Sciences [physics], Hardware and Architecture, Control and Systems Engineering, Signal Processing, Electrical and Electronic Engineering
Abstract: International audience; In this paper, a methodology is proposed for studying the current collapse effects of Gallium Nitride (GaN) power diodes and the consequences on the dynamic on-resistance (RON). Indeed, the growing interest of GaN based, high frequency power conversion requires an accurate characterization and a deep understanding of the device’s behaviour before any development of power converters. This study can ultimately be used to model observed trap effects and, thus, improve the equivalent electrical model. Using an in-house circuit and a specific experimental setup, a current-collapse phenomenon inherent to gallium nitride semiconductor is studied on planar 650 V—6 A GaN diodes by applying high voltage stresses over a wide range of temperatures. With this method, useful data on activation energy and capture cross section of electrical defects linked to dynamic RON are extracted. Finally, the origins of such defects are discussed and attributed to carbon-related defects.
Published: 2023
Full Text: View/download PDF

30. Design Method of PCB Inductors for High-Frequency GaN Converters

Author: Nadir Idir, Ammar Chafi, Arnaud Videt, Hassan Maher, Institut Interdisciplinaire d'Innovation Technologique [Sherbrooke] (3IT), Université de Sherbrooke (UdeS), Laboratoire Nanotechnologies et Nanosystèmes [Sherbrooke] (LN2), Université de Sherbrooke (UdeS)-École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Haute Etude d'Ingénieurs-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - EA 2697, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP], Laboratoire Nanotechnologies et Nanosystèmes [Sherbrooke] [LN2], 265252|||Institut Interdisciplinaire d'Innovation Technologique [Sherbrooke] [3IT], Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), and Université de Lyon-Université de Lyon-École Supérieure de Chimie Physique Électronique de Lyon (CPE)-Institut National des Sciences Appliquées de Lyon (INSA Lyon)
Subjects: Materials science, thermal issues, Hardware_PERFORMANCEANDRELIABILITY, 02 engineering and technology, Inductor, 7. Clean energy, law.invention, Switching time, GaN converters, Parasitic capacitance, Hardware_GENERAL, law, Hardware_INTEGRATEDCIRCUITS, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Electrical and Electronic Engineering, ComputingMilieux_MISCELLANEOUS, PCB inductor, Power density, [PHYS]Physics [physics], Flexible magnetic sheets, optimization of volume, 020208 electrical & electronic engineering, Transistor, Converters, [SPI.TRON]Engineering Sciences [physics]/Electronics, Inductance, visual_art, Electronic component, visual_art.visual_art_medium
Abstract: International audience; The new power Gallium Nitride transistors allow to increase the operating frequency of converters to megahertz range, thanks to their low switching time that is of a few nanoseconds or less. This permits to reduce the values and the volume of the passive components, and enhance the power density of power converters. However, inductors needed for energy storage still take a large volume in converters compared with the others components, because of their weak energy density. Furthermore, high-frequency operation require low-losses magnetic materials. In this article, a design method of PCB inductors is proposed. A flexible ferrite sheet is used to enhance the inductance value and ease the realization of custom-shape devices. The design method of the inductor is based on the optimization of the inductor volume taking into account thermal issues of the magnetic sheets. Also a simulation method is proposed to calculate the equivalent stray capacitance of the inductors. The proposed method provides a losses volume tradeoff that helps designers to optimize the inductor for their application.
Published: 2021
Full Text: View/download PDF

31. PQ Decoupling on Grid-Forming Converter Connected to a Distribution Network

Author: Laba, Yorgo, Bruyere, Antoine, Colas, Frederic, Guillaud, Xavier, Université de Lille, Centrale Lille, Arts et Métiers Sciences et Technologies, Junia HEI, Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: Controllability, Reactive power control, Active Power Control, Virtual Inductance, Distribution Grid, High-voltage techniques, Decoupling, Low voltage, [SPI]Engineering Sciences [physics], Distribution networks, Power electronics, Grid-Forming, Inductance
Abstract: International audience; In recent years, several works on grid-forming converters in transmission networks have been performed. Since these high voltage grids are mainly inductive, a natural decoupling exists between active and reactive power controls. This decoupling facilitates the design and the performance of the grid-forming controllers. However, in distribution applications, it is well known that the R/X ratio of the line impedance is substantially higher, preventing the system from a natural decoupling effect. This paper proposes an original solution to decouple the control and gives an application to a low voltage connection of a grid-forming converter.
Published: 2022
Full Text: View/download PDF

32. Manual wheelchair biomechanics while overcoming various environmental barriers: A systematic review

Author: Théo Rouvier, Aude Louessard, Emeline Simonetti, Samuel Hybois, Joseph Bascou, Charles Pontonnier, Hélène Pillet, Christophe Sauret, École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Institut de Biomécanique Humaine Georges Charpak (IBHGC), Université Sorbonne Paris Nord-Arts et Métiers Sciences et Technologies, Institut de Mécanique et d'Ingénierie (I2M), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Arts et Métiers Sciences et Technologies, Institution Nationale des Invalides - Centre d’Etudes et de Recherche sur l’Appareillage des Handicapés (INI/CERAH), Université Paris-Saclay, Analysis-Synthesis Approach for Virtual Human Simulation (MIMETIC), Université de Rennes 2 (UR2)-Inria Rennes – Bretagne Atlantique, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-RÉALITÉ VIRTUELLE, HUMAINS VIRTUELS, INTERACTIONS ET ROBOTIQUE (IRISA-D5), Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-Institut National de Recherche en Informatique et en Automatique (Inria)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Institut de Recherche en Informatique et Systèmes Aléatoires (IRISA), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Université de Bretagne Sud (UBS)-École normale supérieure - Rennes (ENS Rennes)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-IMT Atlantique (IMT Atlantique), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT), ANR-19-CE19-0007,CapaCITIES,Quantifier le coût biomécanique des déplacements urbains en fauteuil roulant pour l'accessibilité des villes de demain(2019), École Nationale Supérieure des Arts et Métiers (ENSAM), Faculté des Sciences du Sport, Complexité, Innovation, Activités Motrices et Sportives (CIAMS), Université d'Orléans (UO)-Université Paris-Saclay, Université de Rennes (UR), École normale supérieure - Rennes (ENS Rennes), and This study was funded by the French National Research Agency, 'Agence Nationale de la Recherche' (https://anr.fr/) by a grant awarded to the following authors: T.R., A.L., J.B., C.P., H.P., C.S.Grant number: ANR-19-CE19-0007
Subjects: Kinematics, Multidisciplinary, Cross-slope, Electromyography, Spatio-temporal parameters, [SPI.MECA.BIOM]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Biomechanics [physics.med-ph], Architectural Accessibility, Biomechanical Phenomena, Slope, Curb, Cross-slope, Slope, Ground type, Kinematics, Spatio-temporal parameters, Kinetics, Electromyography, Kinetics, Wheelchairs, Ground type, Humans, Curb, [PHYS.MECA.BIOM]Physics [physics]/Mechanics [physics]/Biomechanics [physics.med-ph], Fatigue, Locomotion, Mécanique: Biomécanique [Sciences de l'ingénieur]
Abstract: During manual wheelchair (MWC) locomotion, the user's upper limbs are subject to heavy stresses and fatigue because the upper body is permanently engaged to propel the MWC. These stresses and fatigue vary according to the environmental barriers encountered outdoors along a given path. This study aimed at conducting a systematic review of the literature assessing the biomechanics of MWC users crossing various situations, which represent physical environmental barriers. Through a systematic search on PubMed, 34 articles were selected and classified according to the investigated environmental barriers: slope; cross-slope; curb; and ground type. For each barrier, biomechanical parameters were divided into four categories: spatiotemporal parameters; kinematics; kinetics; and muscle activity. All results from the different studies were gathered, including numerical data, and assessed with respect to the methodology used in each study. This review sheds light on the fact that certain situations (cross-slopes and curbs) or parameters (kinematics) have scarcely been studied, and that a wider set of situations should be studied. Five recommendations were made at the end of this review process to standardize the procedure when reporting materials, methods, and results for the study of biomechanics of any environmental barrier encountered in MWC locomotion: (i) effectively reporting barriers’ lengths, grades, or heights; (ii) striving for standardization or a report of the approach conditions of the barrier, such as velocity, especially on curbs; (iii) reporting the configuration of the used MWC, and if it was fitted to the subject’s morphology; (iv) reporting rotation sequences for the expression of moments and kinematics, and when used, the definition of the musculoskeletal model; lastly (v) when possible, reporting measurement uncertainties and model reconstruction errors. This study was funded by the French National Research Agency, “Agence Nationale de la Recherche” (https://anr.fr/) by a grant awarded to the following authors: T.R., A.L., J.B., C.P., H.P., C.S. Grant number: ANR-19-CE19-0007
Published: 2022
Full Text: View/download PDF

33. Comparison of five-phase, six-phase and seven-phase fault tolerant electric drives

Author: Ribiere, Antonin, Nguyen, Ngac-Ky, Semail, Eric, Espanet, Christophe, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), and Moving Magnet Technologies (MMT)
Subjects: multiphase machine, multiphase drive, Energie électrique [Sciences de l'ingénieur], [SPI.NRJ]Engineering Sciences [physics]/Electric power, fault tolerant control, automotive steering, open-end winding
Abstract: International audience; Automotive industry is evolving towards more fault-tolerant actuators to fulfill future autonomous vehicles requirements. Critical applications such as steering or braking have to resist to fault occurrences while being low cost due to mass production market. Considering these two criteria, multiphase electric drives offer a good tradeoff between increasing the degrees of freedom and limiting system oversizing. This paper proposes to compare three multiphase electric drives for electro-hydraulic power steering for trucks: a five-phase machine and a six-phase machine both fed by a full bridge inverter (FBI), and a seven-phase machine fed by a standard half-bridge inverter (HBI). Several comparison criteria are considered in the meantime: motor, electronics, control and manufacturing parameters. Some of criteria are obtained from finite-element analysis (FEA), while others are derived from analytic formula or dynamic simulations . Criteria are evaluated for each drive and then results are discussed. In the given low-voltage high-current application, H-bridge inverter topology seems to be a promising solution. Both five-phase and six-phase present similar results. However, six-phase drive could be more interesting, as it could be brought close to standard three-phase solutions and adapted to dual-lane supply.
Published: 2022
Full Text: View/download PDF

34. An investigation of design in virtual reality across the variation of training degree and visual realism

Author: Sylvain Fleury, Laurent Dupont, Noemie Chaniaud, Saadallah Tamazart, Benjamin Poussard, Geoffrey Gorisse, Simon Richir, Laboratoire Angevin de Mécanique, Procédés et InnovAtion (LAMPA), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Equipe de Recherche sur les Processus Innovatifs (ERPI), Université de Lorraine (UL), Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Université de Lorraine, Laboratoire ERPI, Mauricio Camargo, Laurent Dupont, Laure Morel, Lorraine Fab Living Lab® (LF2L), Octroi Nancy, and European Project: 869952,INEDIT
Subjects: immersive technologies, [SPI]Engineering Sciences [physics], Synthèse d'image et réalité virtuelle [Informatique], immersion intensity, visual representation, creativity
Abstract: Research showed that immersive technologies can significantly improve the design process. However, it is important to consider the ease of implementation of solutions (e.g. price, simplicity). Therefore, the objective of this study was to analyze the uses of two types of virtual environments that are relatively simple to implement: a basic model of a room and its 3D scan. Participants made sketches using a virtual reality application, provided by the instructors, in each of the two different VR environments. The sketches are proposals to a furniture co-creation task. Results indicate a better co-creation process during the second session than during the first, which reveals that training is an important criterion in this case. Furthermore, co-creation is felt to be better in the case of the modeled place compared to the 3D scan. This result could be due to the presence of useless virtual objects that can cause a distraction to the participants. These results are discussed from an applicative standpoint. Projet INEDIT de la Commission européenne
Published: 2022
Full Text: View/download PDF

35. Low-frequency ultrasound skin mechanical impedance sensor for Pressure Ulcer diagnostic

Author: Sales de Castro, Elis Marina, Semail, Betty, Giraud, Frédéric, Université de Lille, Centrale Lille, Arts et Métiers Sciences et Technologies, Junia HEI, Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), and European Project: 811965,H2020,H2020-MSCA-ITN-2018,STINTS(2019)
Subjects: [SPI]Engineering Sciences [physics], Diagnostics, Langevin Transducer, Low frequency ultrasound, Pressure Ulcers, Skin mechanic
Abstract: National audience; Pressure ulcers are a concern not only for the patients who suffer from them, but also for public health. Its costs to the quality of life of patients and to the public finances can be reduced with an early diagnostic. Several efforts have been made to find a solution for this diagnostic, for example by analysing the hydration or the electrical impedance of the skin. So far, no method is sufficiently reliable. In this context, a low-frequency ultrasound device is proposed, with the aim of offering an alternative that can be reliable and non-invasive. The Langevin transducer is a highly efficient device that can provide a measurement of the mechanical characteristics of the skin. Initial results show that mechanical impedance can discriminate the skin according to the location of the measurement.; Les escarres représentent un problème sanitaire majeur non seulement pour les patients, mais aussi pour la santé publique. Ses couts pour la qualité de vie des patients et pour les finances publiques peuvent être réduits si son diagnostique se fait suffisamment tôt. Des nombreux efforts ont été faits en cherchant une solution pour ce diagnostique, en analysant l’hydratation ou l’impédance électrique de la peau, par exemple. Jusqu’à présent, aucune méthode n’est suffisamment fiable. Dans ce contexte, un dispositif de mesure d’impédance mécanique de la peau, utilisant des ultrasons de “basse fréquence”, est proposé, avec le but d’offrir une alternative qui peut-être fiable et non-invasive. Dans ce travail, nous proposons d’utiliser un transducteur de Langevin pour fournir une mesure des caractéristiques mécaniques de la peau. Des premiers résultats obtenus montrent que l’impédance mécanique permet de discriminer la peau selon la localisation de la mesure.
Published: 2022

36. Optimal siting and sizing of charging stations for autonomous electric vehicle fleet with local renewable energy generation

Author: Brotcorne, Luce, Francois, Bruno, Ali, Haider, Integrated Optimization with Complex Structure (INOCS), Inria Lille - Nord Europe, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Université libre de Bruxelles (ULB)-Centre de Recherche en Informatique, Signal et Automatique de Lille - UMR 9189 (CRIStAL), Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Centrale Lille-Université de Lille-Centre National de la Recherche Scientifique (CNRS), L2EP - Équipe Commande, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: [INFO.INFO-RO]Computer Science [cs]/Operations Research [cs.RO]
Abstract: International audience
Published: 2022

37. Experimental investigation of efficient and simple wind-turbine based on DFIG-direct power control using LCL-filter for stand-alone mode

Author: Fayssal Amrane, Azeddine Chaiba, Bruno Francois, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Centrale Lille, L2EP - Équipe Réseaux, Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Université Ferhat-Abbas Sétif 1 [Sétif] (UFAS1), and Universite Abbes Laghrour [Khenchela]
Subjects: Computer science, DFIG Integral-Proportional, Power factor, Wind Energy Conversion System, Wind speed, law.invention, law, Control theory, Overshoot (signal), Electrical and Electronic Engineering, smart grid, Instrumentation, DPC LCL-Filter dSPACE 1103 Doubly Fed Induction Generator, Wind power, WECS Direct Power Control, business.industry, Rotor (electric), Applied Mathematics, Induction generator, [SPI.NRJ]Engineering Sciences [physics]/Electric power, Computer Science Applications, Power (physics), Control and Systems Engineering, IP, Smart Grids and Sustainable Energy Transformation, business, Power control
Abstract: This paper suggests an experimental implementation study of the Wind Energy Conversion System (WECS) based on efficient Direct Power Control (DPC). Stand-alone mode for variable wind speed application using Doubly-Fed Induction Generator (DFIG) is studied and developed in this work. Due to the wind power performance limitation of traditional PI controllers, such as overshoot, response time, and static error; IP (integral–Proportional) controllers is replaced instead of the PI to control rotor current d – q components ( I rd and I rq ) in a Park frame through AC–DC–AC converter. A comparative experimental study was implemented to improve the power quality using L, LC & LCL passive filters between the DFIG’s rotor circuit and the inverter. Experimental results prove that the proposed DPC under stand-alone mode with LCL-Type filter could operate in several conditions despite the sudden wind speed variations. It improves the unity power factor grid operation ( ≈ 0.98), dynamic responses, and the decoupled power control with high wind power performances: good reference tracking, short response time, neglected overshoot, and low power error. The power quality injected into the RL-load satisfied the limit specified by IEEE harmonic standard 519 (less than 5%).
Published: 2022
Full Text: View/download PDF

38. A nonlinear piezoelectric shunt absorber with a 2:1 internal resonance: Theory

Author: Zein Alabidin Shami, Christophe Giraud-Audine, Olivier Thomas, Laboratoire d’Ingénierie des Systèmes Physiques et Numériques (LISPEN), Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: 2:1 internal resonance, Electronique [Sciences de l'ingénieur], Mechanical Engineering, Piezoelectric shunt circuit, 1 internal resonance [2], Aerospace Engineering, [SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph], Computer Science Applications, [SPI.TRON]Engineering Sciences [physics]/Electronics, Mécanique: Vibrations [Sciences de l'ingénieur], Nonlinear oscillations, Control and Systems Engineering, Energy transfer, Signal Processing, Civil and Structural Engineering
Abstract: International audience; In this paper, a semi-passive nonlinear piezoelectric shunt absorber is presented, aiming at attenuating the vibration of a resonant elastic structure under external excitation. This is done by connecting the elastic structure to a nonlinear shunt circuit via a piezoelectric patch. The nonlinear shunt circuit consists of resonant circuit that includes a quadratic non-linearity. A particular tuning of the natural frequency of the shunt enables to create a two to one internal resonance. This generates a strong coupling between the mechanical mode and the electrical mode, leading to replace the mechanical resonance with a nonlinear antiresonance associated with an amplitude saturation, thus leading to an efficient vibration reduction. In this paper, we first propose a theoretical model that is expanded onto a suitable electromechanical modal basis and reduced to the two modes of interest, nonlinearly coupled by quadratic terms. Then, analytical solutions are obtained by the multiple scale method and compared to a reference numerical solutions stemming from the harmonic balance method. This enables to investigate the performance of the system in term of vibration absorption as well as giving design rules to tune the nonlinear shunt and to choose the free parameters of the system.
Published: 2022
Full Text: View/download PDF

39. Seuil de détection spatio-temporelle des retards audio-tactiles en conditions de toucher actif avec et sans indice visuel

Author: Brahimaj, Detjon, Esposito, Giulia, Mouraux, Andre, Collignon, Olivier, Giraud, Frederic, Semail, Betty, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), Université Catholique de Louvain = Catholic University of Louvain (UCL), University of Trento [Trento], L2EP - Équipe Commande, Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancé - USR 3380 (IRCICA), Université de Lille-Centre National de la Recherche Scientifique (CNRS), and European Project: 860114,H2020,H2020-MSCA-ITN-2019 ,MULTITOUCH(2020)
Subjects: [SCCO.NEUR]Cognitive science/Neuroscience, [INFO.INFO-HC]Computer Science [cs]/Human-Computer Interaction [cs.HC]
Abstract: International audience; Active touch (AT) is defined as the action of touching, implying voluntary, self-generated movement. While much research has been conducted on multisensory interactions in passive touch, research on how AT influences how the senses interact remains scarce. Using a haptic surface (HS) based on ultrasonic vibrations, we investigated the perception of synchronization of audio-tactile stimuli in AT. Tactile stimuli were delivered upon sliding the finger over the tactile zone of the HS. Auditory stimuli (a white noise burst) followed the tactile stimuli with a delay ranging from 0 to 700 ms. Participants reported whether the two stimuli were perceived as coinciding in time or not. Two conditions were employed for the discrimination task: (i) either with a visual clue showing the location of the tactile zone on the screen; (ii) or with a black screen below the HS. Time delays (ms) between the tactile-auditory inputs were converted in displacement (mm), depending on the sliding velocity of the participant’s finger across the HS, to calculate spatial distances at which the two stimuli were perceived as coinciding or not with the same probability. The average distance was 5.87mm with visual cues and 5.63mm without a visual cue. No significant difference was found between the two visual conditions suggesting performance is not affected by the presence of a visual cue regarding the location of the tactile stimulus. Our results provide insights into the sensitivity of participants in perceiving spatiotemporal differences between tactileauditory stimuli generated during AT exploration.
Published: 2022

40. Further investigation of convolutional neural networks applied in computational electromagnetism under physics‐informed consideration

Author: Ruohan Gong, Zuqi Tang, Université de Lille, Centrale Lille, Arts et Métiers Sciences et Technologies, Junia HEI, Laboratoire d'Électrotechnique et d'Électronique de Puissance (L2EP) - ULR 2697, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: [SPI]Engineering Sciences [physics], Electrical and Electronic Engineering
Abstract: International audience; Convolutional neural networks (CNN) have shown great potentials and have been proven to be an effective tool for some image-based deep learning tasks in the field of computational electromagnetism (CEM). In this work, an energy-based physics-informed neural network (EPINN) is proposed for low-frequency electromagnetic computation. Two different physics-informed loss functions are designed. To help the network focus on the region of interest instead of computing the whole domain on average, the magnetic energy norm error loss function is proposed. Besides, the methodology of energy minimization is integrated into the CNN by introducing the magnetic energy error loss function. It is observed that the introduction of the physics-informed loss functions improved the accuracy of the network with the same architecture and database. Meanwhile, these changes also cause the network to be more sensitive to some hyperparameters and makes the training process oscillate or even diverge. To address this issue, the sensitivity of the network hyperparameters for both physics-informed loss functions are further investigated. Numerical experiments demonstrate that the proposed approaches have good accuracy and efficiency with fine-tuned hyperparameters. Furthermore, the post-test illustrates that the EPINN has excellent interpolation performance and can obtain good extrapolation results under certain restrictions.
Published: 2022
Full Text: View/download PDF

41. An experimental blade-controlled platform for the design of smart cross-flow propeller

Author: Guillaume Fasse, Florent Becker, Frederic Hauville, Jacques-Andre Astolfi, Gregory Germain, Laboratoire de Mécanique des Fluides de Lille – Kampé de Fériet - UMR 9014 (LMFL), Centrale Lille-ONERA-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Institut de Recherche de l'Ecole Navale (IRENAV), Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Arts et Métiers Sciences et Technologies, Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Laboratoire de Mécanique des Fluides de Lille – Kampé de Fériet - UMR 9014 [LMFL], Institut de Recherche de l'Ecole Navale [IRENAV], and Institut Français de Recherche pour l'Exploitation de la Mer [IFREMER]
Subjects: Environmental Engineering, Mécanique [Sciences de l'ingénieur], [SDE.IE]Environmental Sciences/Environmental Engineering, Blade-control, Cycloidal propulsion, Experimental test-bench, Ocean Engineering, Vertical axis propeller, [SPI.MECA.GEME]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanical engineering [physics.class-ph]
Abstract: International audience; As an academic platform, the French Naval Academy Research Institute (IRENav) developed a large-scale experimental cycloidal propeller (800 kg, 0.4 m radius) with the aim of running diverse pitch motions to evaluate performances of cross-flow propellers. Blades’ pitching is here performed by servo-motors in order to control each blade independently. Blade pitch regulation has been improved to obtain a quick response of auxiliary servo-motors. However, pitch tracking validation shows a systemic error due the PI regulation loop which depends on the rotational speed and the considered pitch law (the sharper the law, the higher the error). The platform is widely instrumented with load and torque sensors to measure inflow hydrodynamic forces during the rotation. First experiments have been performed at the IFREMER wave–current flume tank for a range of sinusoidal pitch laws to confirm the post process procedure and to determine performances for a range of advance parameters. Results show that depending on the advance parameter the more different efficient law is: the higher the advance parameter, the lower the sinusoidal amplitude must be for a better efficiency. These results confirm the requirement of an adaptable pitch control for cycloidal propeller to boost their performances.
Published: 2022
Full Text: View/download PDF

42. A novel technique for dynamic shear testing of bulk metals with application to 304 austenitic stainless steel

Author: Paul Wood, Bin Jia, Raphaël Pesci, Slim Bahi, Alexis Rusinek, Richard Bernier, Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Laboratoire de Conception Fabrication Commande (LCFC), Université de Lorraine (UL)-Arts et Métiers Sciences et Technologies, Université Carlos III de Madrid, Institute of Fundamental Technological Research (IPPT), Polska Akademia Nauk = Polish Academy of Sciences (PAN), and University of Derby [United Kingdom]
Subjects: Matériaux [Sciences de l'ingénieur], Materials science, Dynamic strain rate, [PHYS.MECA.GEME]Physics [physics]/Mechanics [physics]/Mechanical engineering [physics.class-ph], 02 engineering and technology, [SPI.MAT]Engineering Sciences [physics]/Materials, Stress (mechanics), 0203 mechanical engineering, Shear stress, General Materials Science, Composite material, Finite element modeling, ComputingMilieux_MISCELLANEOUS, Applied Mathematics, Mechanical Engineering, Split-Hopkinson pressure bar, 021001 nanoscience & nanotechnology, Condensed Matter Physics, SIngle-shear specimen, Strength of materials, Shear (sheet metal), Simple shear, 020303 mechanical engineering & transports, Correction coefficient method, Mechanics of Materials, Modeling and Simulation, Deformation (engineering), Shear zone, 0210 nano-technology
Abstract: This paper describes a new single-shear specimen (SSS) and method to characterize the dynamic shear behavior of bulk metals using a traditional Split Hopkinson Pressure Bar (SHPB). By this method, the shear behavior of materials can be tested conveniently over a wide range of strain rates within 105 s−1. This technique was applied to a 304 austenitic stainless steel (ASS) under shear strain rates from 0.001 s−1 to 38700 s−1 at room temperature. Based on finite element (FE) simulations, it was found that the deformation of the specimen shear zone was dominated by shear stress/strain components. Stress state parameters represented by stress triaxiality η and Lode angle parameter θ - were found very close to zero, indicating a deformation mode of simple shear. Besides, an obvious gap existed between the local deformation behavior in the specimen shear zone and the macroscopic stress-strain relations measured by the strain gauges on the SHPB bars. A correction coefficient method was adopted to extract the real shear behavior from the experimentally obtained force-displacement data. Through comparisons between the tested and simulated stress-strain curves, a good agreement was obtained.
Published: 2020
Full Text: View/download PDF

43. Optimal Energy Storage System-Based Virtual Inertia Placement: A Frequency Stability Point of View

Author: Bruno Francois, Shiva Amini, Arturo Roman Messina, Hemin Golpira, Azin Atarodi, Hassan Bevrani, University of Kurdistan [Sanandaj - Iran] (UOK), Universidad de Guadalajara, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL), L2EP - Équipe Réseaux, Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, Centro de Investigacion y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV), and University of KurdistanCentrale Lille
Subjects: Inertial response, transient stability, Frequency response, Computer science, Measurement uncertainty, 020209 energy, inertial response, Energy Engineering and Power Technology, 02 engineering and technology, sensitivity 30 157, Optimal placement, Energy storage, [SPI.AUTO]Engineering Sciences [physics]/Automatic, Cutoff frequency, [SPI]Engineering Sciences [physics], Electric power system, sensitivity analysis, virtual inertia, Control theory, 0202 electrical engineering, electronic engineering, information engineering, Sensitivity (control systems), [MATH]Mathematics [math], Electrical and Electronic Engineering, uncertainty analysis, ComputingMilieux_MISCELLANEOUS, rate of change of frequency, [SPI.NRJ]Engineering Sciences [physics]/Electric power, Phasor measurement units, frequency nadir, Power (physics), [SPI.ELEC]Engineering Sciences [physics]/Electromagnetism, Nonlinear system, State of charge, frequency response, packet loss, Frequency estimation, measurement uncertainties, energy storage systems, virtual of frequency, Estimation
Abstract: In this paper, the problem of optimal placement of virtual inertia is considered as a techno-economic problem from a frequency stability point of view. First, a data driven-based equivalent model of battery energy storage systems, as seen from the electrical system, is proposed. This experimentally validated model takes advantage of the energy storage system special attributes to contribute to inertial response enhancement, via the virtual inertia concept. Then, a new framework is proposed, which considers the battery storage system features, including annual costs, lifetime and state of charge, into the optimal placement formulation to enhance frequency response with a minimum storage capacity. Two well-known dynamical frequency criteria, the frequency nadir and the rate of change of frequency, are utilized in the optimization formulation to determine minimum energy storage systems. Moreover, a power angle-based stability index is also used to assess the effect of virtual inertia on transient stability. Sensitivity and uncertainty analyses are further conducted to assess the applicability of the method. The efficiency of the proposed framework is demonstrated on a linearized model of a three-area power system as well as two nonlinear systems. Simulation results suggest that the proposed method gives improved results in terms of stability measures and less ESS capacity, when compared with other methods proposed in the literature.
Published: 2020
Full Text: View/download PDF

44. Chiral and non-centrosymmetric effects on the nonlinear wave propagation characteristics of architectured cellular materials

Author: J.F. Ganghoffer, Nikolaos Karathanasopoulos, Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), and Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)-Arts et Métiers Sciences et Technologies
Subjects: Physics, Wave propagation, High Energy Physics::Lattice, General Engineering, General Physics and Astronomy, Metamaterial, 02 engineering and technology, 021001 nanoscience & nanotechnology, bandgap, chiral, Nonlinear wave propagation, [SPI]Engineering Sciences [physics], metamaterials, 020303 mechanical engineering & transports, Classical mechanics, 0203 mechanical engineering, centrosymmetric, Group velocity, 0210 nano-technology, Chirality (chemistry), group velocity, ComputingMilieux_MISCELLANEOUS
Abstract: International audience; In the current work, we study the role of chirality and non-centrosymmetry on the nonlinear wave propagation characteristics of periodic architectured media. The considered nonlinearities arise from the higher-order inner element kinematics of the periodic media and are therefore directly related to its structural pattern. Regarding centrosymmetric designs, the frequency corrections obtained -in the context of the Lindstedt-Poincare method- suggest that chiral architectures are more sensitive to inner kinematic nonlinearities than well-known, achiral lattice designs. In particular, for hexachiral lattice designs, non-negligible frequency corrections are obtained, not only for the primal eigenmode, but also for higher-order modes, extensively modifying the linear band diagram structure. To the contrary, for achiral, triangular and square lattice designs, inner kinematic nonlinearities mainly influence the primal, lowest eigenmode, with the higher-order modes to remain practically unaffected. Non-centrosymmetric inner designs modify the linear and nonlinear wave propagation material attributes both for chiral and achiral lattice patterns. However, the frequency ranges affected are strongly lattice dependent, with hexachiral and triangular lattices to be primarily influenced in their high frequency range, contrary to square lattices, which are mainly affected in their low frequency region.
Published: 2020
Full Text: View/download PDF

45. A review on the technologies, design considerations and numerical models of tidal current turbines

Author: Marwane Rouway, Mostapha Tarfaoui, Ibrahim Goda, M. Nachtane, Institut de Mécanique et d'Ingénierie de Bordeaux (I2M), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB)-École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche Dupuy de Lôme (IRDL), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Centre National de la Recherche Scientifique (CNRS), Faculté des Sciences Aïn Chock [Casablanca] (FSAC), and Université Hassan II [Casablanca] (UH2MC)
Subjects: Emerging technologies, Computer science, Performance prediction, 020209 energy, 02 engineering and technology, 7. Clean energy, Turbine, [SPI.MECA.MEFL]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph], [SPI]Engineering Sciences [physics], 0202 electrical engineering, electronic engineering, information engineering, 0601 history and archaeology, 14. Life underwater, Tidal current turbine (TCT), 060102 archaeology, Renewable Energy, Sustainability and the Environment, business.industry, Hydrofoil design, 06 humanities and the arts, Marine renewable energies, Renewable energy, Drag, Up-to-date review, Pitching moment, Electric power, Energy source, business, Marine engineering
Abstract: International audience; Tidal current turbine is one of the innovative and emerging technologies of marine renewable energies because it offers constant and predictable energy source that can be very beneficial, especially for commercial scale production of electrical power. Hydrofoils (HF) are essential elements of tidal current turbine (TCT) and should be properly designed as they play a vital role in improving the turbine output and providing adequate resistance to the blade structure. In connection with the hydrofoil designs, it is noteworthy that the primary objectives in their designs are to increase the coefficient of lift and to reduce the coefficients of drag and pitching moment, thus delaying the cavitation phenomenon. In this paper, the technology developments of the hydrofoil designs used in the horizontal axis TCT industry are reviewed, including the hydrodynamics design and the mechanical structure design. Besides, an up-todate review and the newest achievements of marine TCT technologies with their developing histories are further explored. Included are also reviews on the numerical models used to assess the performance of TCT and optimization methods applied to design the hydrofoils. This in turn significantly contributes to a better knowledge on the recent designs of TCT hydrofoils for the researchers working in the marine turbine energy domain. Such information could also have important implications in the design of more sophisticated hydrofoils for the exploitation in diverse tidal current energy technologies for reaching a sustainable future.
Published: 2020
Full Text: View/download PDF

46. A Review of Surface Haptics: Enabling Tactile Effects on Touch Surfaces

Author: Cagatay Basdogan, Seungmoon Choi, Vincent Levesque, Frédéric Giraud, Koç University, L2EP - Équipe Commande, Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 (L2EP), Centrale Lille-Haute Etude d'Ingénieurs-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Centrale Lille-Haute Etude d'Ingénieurs-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancé - USR 3380 (IRCICA), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Ecole de Technologie Supérieure [Montréal] (ETS), Pohang University of Science and Technology (POSTECH), C.B. acknowledges the financial support provided by The Scientific and Technological Research Council of Turkey (TUBITAK) under the contract no. 117E954. F.G. acknowledges the support of IRCICA, USR CNRS 3380. V.L. acknowledges the support of the Discovery Grant program of the Natural Sciences and Engineering Research Council (NSERC) of Canada., Méthodes et outils pour l'Interaction à gestes [MINT2], Institut de Recherche sur les Composants logiciels et matériels pour l'Information et la Communication Avancé - USR 3380 [IRCICA], Ecole de Technologie Supérieure [Montréal] [ETS], Pohang University of Science and Technology [POSTECH], Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-JUNIA (JUNIA), Université catholique de Lille (UCL)-Université catholique de Lille (UCL)-Centrale Lille-Université de Lille-Arts et Métiers Sciences et Technologies, and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: FOS: Computer and information sciences, Surface (mathematics), surface haptics, tactile feedback, ultrasonic, InformationSystems_INFORMATIONINTERFACESANDPRESENTATION(e.g.,HCI), Computer science, Computer Science - Human-Computer Interaction, review, 02 engineering and technology, GeneralLiterature_MISCELLANEOUS, Human-Computer Interaction (cs.HC), Tactile stimuli, User-Computer Interface, Computer Science - Robotics, Feedback, Sensory, Human–computer interaction, 0202 electrical engineering, electronic engineering, information engineering, Humans, Electrovibration, friction modulation, ComputingMethodologies_COMPUTERGRAPHICS, Haptic technology, electrovibration, Active touch, [SPI.NRJ]Engineering Sciences [physics]/Electric power, 020207 software engineering, state of the art, 021001 nanoscience & nanotechnology, 3. Good health, Computer Science Applications, Human-Computer Interaction, Touch Perception, Touch, Computers, Handheld, Current technology, vibrotactile, 0210 nano-technology, Robotics (cs.RO), Mobile device
Abstract: We review the current technology underlying surface haptics that converts passive touch surfaces to active ones (machine haptics), our perception of tactile stimuli displayed through active touch surfaces (human haptics), their potential applications (human-machine interaction), and finally the challenges ahead of us in making them available through commercial systems. This review primarily covers the tactile interactions of human fingers or hands with surface-haptics displays by focusing on the three most popular actuation methods: vibrotactile, electrostatic, and ultrasonic., 21 pages, 177 references, review paper
Published: 2020
Full Text: View/download PDF

47. A machine learning framework for enhancing digital experiences in cultural heritage

Author: Sebti Foufou, Abdulaziz Khalid Al-Ali, Abdelaziz Bouras, Abdelhak Belhi, Qatar University, Décision et Information pour les Systèmes de Production (DISP), Université Lumière - Lyon 2 (UL2)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Laboratoire Electronique, Informatique et Image [UMR6306] (Le2i), Université de Bourgogne (UB)-École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS), and Qatar National Research Fund (Qatar Foundation) 9-181-1-036
Subjects: Computer science, Surf, General Decision Sciences, 02 engineering and technology, Machine learning, computer.software_genre, Annotation, Information, Management of Technology and Innovation, 11. Sustainability, 0202 electrical engineering, electronic engineering, information engineering, [INFO]Computer Science [cs], Cluster analysis, Digital heritage, business.industry, Deep learning, 020206 networking & telecommunications, Web, Cultural heritage, Metadata, Multimodal learning, Unsupervised learning, 020201 artificial intelligence & image processing, Artificial intelligence, business, Classifier (UML), computer, Information Systems
Abstract: Purpose: Digital tools have been used to document cultural heritage with high-quality imaging and metadata. However, some of the historical assets are totally or partially unlabeled and some are physically damaged, which decreases their attractiveness and induces loss of value. This paper introduces a new framework that aims at tackling the cultural data enrichment challenge using machine learning. Design/methodology/approach: This framework focuses on the automatic annotation and metadata completion through new deep learning classification and annotation methods. It also addresses issues related to physically damaged heritage objects through a new image reconstruction approach based on supervised and unsupervised learning. Findings: The authors evaluate approaches on a data set of cultural objects collected from various cultural institutions around the world. For annotation and classification part of this study, the authors proposed and implemented a hierarchical multimodal classifier that improves the quality of annotation and increases the accuracy of the model, thanks to the introduction of multitask multimodal learning. Regarding cultural data visual reconstruction, the proposed clustering-based method, which combines supervised and unsupervised learning is found to yield better quality completion than existing inpainting frameworks. Originality/value: This research work is original in sense that it proposes new approaches for the cultural data enrichment, and to the authors' knowledge, none of the existing enrichment approaches focus on providing an integrated framework based on machine learning to solve current challenges in cultural heritage. These challenges, which are identified by the authors are related to metadata annotation and visual reconstruction. 2020, Emerald Publishing Limited. The authors would also like to thank the Museum of Islamic Art (MIA), the MIA Multimedia team, Mr. Marc Pelletreau, the art curators and the management staff of the Museum of Islamic Art, Doha, Qatar, for their help and contribution in the data acquisition. This publication was made possible by NPRP grant 9-181-1-036 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors ( www.ceproqha.qa ). Scopus
Published: 2020
Full Text: View/download PDF

48. Investigating low-delay deep learning-based cultural image reconstruction

Author: Sebti Foufou, Abdelaziz Bouras, Xi Yu, Abdulaziz Khalid Al-Ali, Abdelhak Belhi, Haiqing Zhang, CSE Department, College of Engineering, Qatar University, PO BOX 2713, Doha, Qatar, Qatar University, Décision et Information pour les Systèmes de Production (DISP), Université Lumière - Lyon 2 (UL2)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA), Laboratoire Electronique, Informatique et Image [UMR6306] (Le2i), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, School of Electrical Engineering and Information Technology [Chengdu], Sichuan University [Chengdu] (SCU), School of Software Engineering [Chengdu], Chengdu University of Technology (CDUT), Chengdu University of Information Technology, and NPRP grant from the Qatar National Research Fund (a member of Qatar Foundation) 9-181-1-036
Subjects: Computer science, Inpainting, 02 engineering and technology, Iterative reconstruction, Machine learning, computer.software_genre, Computer graphics, 0202 electrical engineering, electronic engineering, information engineering, [INFO]Computer Science [cs], Cluster analysis, Digital heritage, business.industry, Deep learning, Low delay, 020207 software engineering, Image clustering, [INFO.INFO-GR]Computer Science [cs]/Graphics [cs.GR], Value theory, Image reconstruction, Image inpainting, Unsupervised learning, 020201 artificial intelligence & image processing, Artificial intelligence, Resolution, business, Low-delay reconstruction, computer, Information Systems
Abstract: Numerous cultural assets host a great historical and moral value, but due to their degradation, this value is heavily affected as their attractiveness is lost. One of the solutions that most heritage organizations and museums currently choose is to leverage the knowledge of art and history experts in addition to curators to recover and restore the damaged assets. This process is labor-intensive, expensive and more often results in just an assumption over the damaged or missing region. In this work, we tackle the issue of completing missing regions in artwork through advanced deep learning and image reconstruction (inpainting) techniques. Following our analysis of different image completion and reconstruction approaches, we noticed that these methods suffer from various limitations such as lengthy processing times and hard generalization when trained with multiple visual contexts. Most of the existing learning-based image completion and reconstruction techniques are trained on large datasets with the objective of retrieving the original data distribution of the training samples. However, this distribution becomes more complex when the training data is diverse making the training process difficult and the reconstruction inefficient. Through this paper, we present a clustering-based low-delay image completion and reconstruction approach which combines supervised and unsupervised learning to address the highlighted issues. We compare our technique to the current state of the art using a real-world dataset of artwork collected from various cultural institutions. Our approach is evaluated using statistical methods and a surveyed audience to better interpret our results objectively and subjectively. 2020, Springer-Verlag GmbH Germany, part of Springer Nature. This publication was made possible by NPRP grant 9-181-1-036 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors (www.ceproqha.qa ). The authors would also like to thank the Museum of Islamic Art (MIA), the MIA Multimedia team, Mr. Marc Pelletreau, the Art Curators and the management staff of the Museum of Islamic Art, Doha Qatar for their help and contribution in the data acquisition. Scopus
Published: 2020
Full Text: View/download PDF

49. A general global-local modelling framework for the deterministic optimisation of composite structures

Author: Marco Picchi Scardaoni, Marco Montemurro, Institut de Mécanique et d'Ingénierie de Bordeaux (I2M), École Nationale Supérieure d'Arts et Métiers (ENSAM), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut National de la Recherche Agronomique (INRA), University of Pisa - Università di Pisa, and This paper presents part of the activities carried out within the research project PARSIFAL ('PrandtlPlane ARchitecture for the Sustainable Improvement of Future AirpLanes'), which has been funded by the European Union under the Horizon 2020 Research and Innovation Program (Grant Agreement n.723149)
Subjects: Mathematical optimization, Control and Optimization, Cantilever, Local modelling approach, Computer science, 0211 other engineering and technologies, 02 engineering and technology, Marsaglia polar method, Design strategy, [SPI.MECA.SOLID]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Solid mechanics [physics.class-ph], 01 natural sciences, Polar method, 021105 building & construction, Mécanique: Mécanique des structures [Sciences de l'ingénieur], 0101 mathematics, Anisotropy, Composites, Buckling, Deterministic optimisation, Global/local modelling approach, Deterministic Optimisation, Mécanique: Mécanique des solides [Sciences de l'ingénieur], Global, Optimisation et contrôle [Mathématique], Computer Graphics and Computer-Aided Design, Computer Science Applications, Design for manufacturability, 010101 applied mathematics, [SPI.MECA.STRU]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Structural mechanics [physics.class-ph], Control and Systems Engineering, Macroscopic scale, [MATH.MATH-OC]Mathematics [math]/Optimization and Control [math.OC], Engineering design process, Software
Abstract: International audience; This work deals with the multi-scale optimisation of composite structures by adopting a general global-local (GL) modelling strategy to assess the structure responses at different scales. The GL modelling approach is integrated into the multi-scale two-level optimisation strategy (MS2LOS) for composite structures. The resulting design strategy is, thus, called GL-MS2LOS and aims at proposing a very general formulation of the design problem, without introducing simplifying hypotheses on the laminate stack and by considering, as design variables, the full set of geometric and mechanical parameters defining the behaviour of the composite structure at each pertinent scale. By employing a GL modelling approach, most of the limitations of well-established design strategies, based on analytical or semi-empirical models, are overcome. The GL-MS2LOS makes use of the polar formalism to describe the anisotropy of the composite at the macroscopic scale (where it is modelled as an equivalent homogeneous anisotropic plate). In this work, deterministic algorithms are exploited during the solution search phase. The challenge, when dealing with such a design problem, is to develop a suitable formulation and dedicated operators, to link global and local models physical responses and their gradients. Closed-form expressions of structural responses gradients are rigorously derived by taking into account for the coupling effects when passing from global to local models. The effectiveness of the GL-MS2LOS is proven on a meaningful benchmark: the least-weight design of a cantilever wing subject to different design requirements. Constraints include maximum allowable displacements, maximum allowable strains, blending, manufacturability requirements and buckling factor.; This work deals with the multi-scale optimisation of composite structures by adopting a general global-local (GL) modelling strategy to assess the structure responses at different scales. The GL modelling approach is integrated into the multi-scale two-level optimisation strategy (MS2LOS) for composite structures. The resulting design strategy is, thus, called GL-MS2LOS and aims at proposing a very general formulation of the design problem, without introducing simplifying hypotheses on the laminate stack and by considering, as design variables, the full set of geometric and mechanical parameters defining the behaviour of the composite structure at each pertinent scale. By employing a GL modelling approach, most of the limitations of well-established design strategies, based on analytical or semi-empirical models, are overcome. The GL-MS2LOS makes use of the polar formalism to describe the anisotropy of the composite at the macroscopic scale (where it is modelled as an equivalent homogeneous anisotropic plate). In this work, deterministic algorithms are exploited during the solution search phase. The challenge, when dealing with such a design problem, is to develop a suitable formulation and dedicated operators, to link global and local models physical responses and their gradients. Closed-form expressions of structural responses gradients are rigorously derived by taking into account for the coupling effects when passing from global to local models. The effectiveness of the GL-MS2LOS is proven on a meaningful benchmark: the least-weight design of a cantilever wing subject to different design requirements. Constraints include maximum allowable displacements, maximum allowable strains, blending, manufacturability requirements and buckling factor.
Published: 2020
Full Text: View/download PDF

50. On the origin of the high tensile strength and ductility of additively manufactured 316L stainless steel: Multiscale investigation

Author: Thierry Auger, Lionel Gosmain, Pascal Aubry, Bassem Barkia, Frédéric Schuster, Hicham Maskrot, Paul Haghi-Ashtiani, CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire) (CEA-DES (ex-DEN)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Laboratoire de mécanique des sols, structures et matériaux (MSSMat), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM), Conservatoire National des Arts et Métiers [CNAM] (CNAM), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies, HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), Institut de Chimie et des Matériaux Paris-Est (ICMPE), Institut de Chimie du CNRS (INC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS), Conservatoire National des Arts et Métiers [CNAM] (CNAM)-Arts et Métiers Sciences et Technologies, and HESAM Université (HESAM)-HESAM Université (HESAM)
Subjects: Twinning, Matériaux [Sciences de l'ingénieur], Materials science, Polymers and Plastics, Additive manufacturing, Austenitic stainless steel, Dislocation structure, 02 engineering and technology, Additive manufacturing - Anisotropy - Austenitic stainless steel - Dislocation structure - Mechanical behavior - Twinning, engineering.material, 010402 general chemistry, 01 natural sciences, [SPI.MAT]Engineering Sciences [physics]/Materials, Ultimate tensile strength, Materials Chemistry, Mechanical behavior, Composite material, Ductility, Structural material, Mechanical Engineering, Metals and Alloys, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Mechanics of Materials, Transmission electron microscopy, Ceramics and Composites, engineering, Anisotropy, Dislocation, Deformation (engineering), 0210 nano-technology, Crystal twinning
Abstract: International audience; We report that 316L austenitic stainless steel fabricated by direct laser deposition (DLD), an additive manufacturing (AM) process, have a higher yield strength than that of conventional 316L while keeping high ductility. More interestingly, no clear anisotropy in tensile properties was observed between the building and the scanning direction of the 3D printed steel. Metallographic examination of the as-built parts shows a heterogeneous solidification cellular microstructure. Transmission electron microscopy observations coupled with Energy Dispersive X-ray Spectrometry (EDS) reveal the presence of chemical micro-segregation correlated with high dislocation density at cell boundaries as well as the in-situ formation of well-dispersed oxides and transition-metal-rich precipitates. The hierarchical heterogeneous microstructure in the AM parts induces excellent strength of the 316L stainless steel while the low staking fault energy of the as-built 316L promotes the occurrence of abundant deformation twinning, in the origin of the high ductility of the AM steel. Without additional post-process treatments, the AM 316L proves that it can be used as a structural material or component for repair in mechanical construction.
Published: 2020
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Database

Publisher

12,143 results on '"Arts et Métiers Sciences et Technologies"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources