24 results on '"production equipment"'
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2. CONTROL OF BOILER EQUIPMENTS DURING STARTING AND STOPPING PERIODS AND METHODS OF OPTIMIZING THESE PROCESSES THROUGH THE USE OF A DECISION SUPPORT SYSTEM WITH A MACHINE VISION SUBSYSTEM.
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Karpenko, Roman and Bondarenko, Yevhenii
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COMPUTER vision , *DECISION support systems , *KNOWLEDGE base , *KNOWLEDGE transfer , *DATABASES - Abstract
The object of research is the automation of starting and stopping steam power boilers. The problem of automating the starting and stopping of steam power boilers is important for thermal power plants (TPP) and industrial enterprises. These processes require significant efforts from service personnel due to their complexity, partial automation and the need to take into account the human factor. It is emphasized that full automation of starting and stopping steam boilers is economically impractical, since most of the time the boilers operate in continuous automatic operations and only a short time is allocated for periodic procedures, which are mostly performed manually. However, the significant impact of the human factor at critical stages of boiler operation requires the introduction of new technologies that can increase the efficiency and safety of such operations. The study outlines the main challenges associated with steam boiler control and proposes new approaches to solving these problems. It is noted that operators often perform actions during boiler starting and stopping based on instructions or their own experience. This knowledge can be formalized and integrated into the database of an expert decision support system (DSS), which automates some of the manual actions and helps operators avoid errors. For this purpose, it is proposed to use machine vision subsystems that can validate the operator's actions, analyze the interaction of personnel with the equipment and signal about possible incorrect actions. This approach can not only reduce the risk of errors due to fatigue or stress of personnel, but also make the starting and stopping processes safer and more efficient. It is proposed to integrate machine vision subsystems to obtain information that is difficult to measure by traditional means, in particular, regarding the operator’s interaction with manual mechanisms or its presence at the workplace. The structure of the proposed DSS also takes into account the possibility of transferring knowledge bases between different objects, which ensures the scalability and adaptability of the system. The implementation of such a system is based on modern international automation standards, in particular ISA-88, ISA-106 and VDI/VDE/VDMA 2632. [ABSTRACT FROM AUTHOR] more...
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- 2024
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3. Industrialization progress of new soft tiles for building decoration.
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ZHU Xiting, MI Wenbin, TANG Wei, BIN Duan, WANG Beibei, CHEN Weiwang, and LU Hongbin
- Abstract
Soft tile is a new type of building decoration material with light, thin and soft characteristics, which is made via mixing, molding, and drying processes by using emulsion as binder and adding inorganic powders, functional fillers, and other agents. In this paper, the soft tile industry is comprehensively reviewed from the background, development history, industrial status, production equipment, and construction technique. Moreover, the development trend is also prospected. [ABSTRACT FROM AUTHOR] more...
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- 2024
4. Evaluation and Analysis of Cement Raw Meal Homogenization Characteristics Based on Simulated Equipment Models.
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Cao, Lianwei and Zhou, Yongmin
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CEMENT industries , *MANUFACTURING processes , *MATERIALS testing , *ROTARY kilns , *BALL mills , *POWDERS - Abstract
In recent years, the variability in the composition of cement raw materials has increasingly impacted the quality of cement products. However, there has been relatively little research on the homogenization effects of equipment in the cement production process. Existing studies mainly focus on the primary functions of equipment, such as the grinding efficiency of ball mills, the thermal decomposition in cyclone preheaters, and the thermal decomposition in rotary kilns. This study selected four typical pieces of equipment with significant homogenization functions for an in-depth investigation: ball mills, pneumatic homogenizing silos, cyclone preheaters, and rotary kilns. To assess the homogenization efficacy of each apparatus, scaled-down models of these devices were constructed and subjected to simulated experiments. To improve experimental efficiency and realistically simulate actual production conditions in a laboratory setting, this study used the uniformity of the electrical capacitance of mixed powders instead of compositional uniformity to analyze homogenization effects. The test material in the experiment consisted of a mixture of raw meal from a cement factory with a high dielectric constant and Fe3O4 powder. The parallel plate capacitance method was employed to ascertain the capacitance value of the mixed powder prior to and subsequent to treatment by each equipment model. The fluctuation of the input and output curves was analyzed, and the standard deviation (S), coefficient of variation (R), and homogenization multiplier (H) were calculated in order to evaluate the homogenization effect of each equipment model on the raw meal. The findings of the study indicated that the pneumatic homogenizer exhibited an exemplary homogenization effect, followed by the ball mill. For the ball mill, a higher proportion of small balls in the gradation can significantly enhance the homogenization effect without considering the grinding efficiency. The five-stage cyclone preheater also has a better homogenization effect, while the rotary kiln has a less significant homogenization effect on raw meal. Finally, the raw meal processed by each equipment model was used for clinker calcination and the preparation of cement mortar samples. After curing for three days, the compressive and flexural strengths of the samples were tested, thereby indirectly verifying the homogenization effect of each equipment model on the raw meal. This study helps to understand the homogenization process of raw materials by equipment in cement production and provides certain reference and data support for equipment selection, operation optimization, and quality control in the cement production process. [ABSTRACT FROM AUTHOR] more...
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- 2024
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5. Influence of Electricity Supply on Economic Growth in Nigeria: Opinions and Attitudes.
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Inegbedion, Henry, Asaleye, Abiola, Bamidele, Razak, and Makun, Babatade
- Abstract
The study investigated the influence of electricity supply on economic growth in Nigeria. The design was a survey of 225 owners of small and medium enterprises in the Niger Delta region of Nigeria. A structured questionnaire was used to elicit the desired information from the respondents. Structural equations modelling served to analyse the data elicited from the respondents. The results showed that electricity supply influences work condition (office temperature, pumping of water, and production equipment), work condition has a significant influence on productivity, and productivity mediates the relationship between work condition and economic growth. However, electricity supply for office temperature and ict does not have any significant influence on economic growth. [ABSTRACT FROM AUTHOR] more...
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- 2024
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6. Investing Ahead - Industrial Outlook on Circularity Within Production Development
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Elvin, Malin, Bruch, Jessica, Aslanidou, Ioanna, Bellgran, Monica, Bohlin, Lotta, Rannenberg, Kai, Editor-in-Chief, Soares Barbosa, Luís, Editorial Board Member, Carette, Jacques, Editorial Board Member, Tatnall, Arthur, Editorial Board Member, Neuhold, Erich J., Editorial Board Member, Stiller, Burkhard, Editorial Board Member, Stettner, Lukasz, Editorial Board Member, Pries-Heje, Jan, Editorial Board Member, M. Davison, Robert, Editorial Board Member, Rettberg, Achim, Editorial Board Member, Furnell, Steven, Editorial Board Member, Mercier-Laurent, Eunika, Editorial Board Member, Winckler, Marco, Editorial Board Member, Malaka, Rainer, Editorial Board Member, Thürer, Matthias, editor, Riedel, Ralph, editor, von Cieminski, Gregor, editor, and Romero, David, editor more...
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- 2024
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7. 抽纸生产线节能降噪改造实践.
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段加许, 段经奎, and 李永福
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NOISE control ,PAPER arts ,ENERGY conservation ,VACUUM pumps ,TISSUES - Abstract
Copyright of China Pulp & Paper Industry is the property of China Pulp & Paper Industry Publishing House and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) more...
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- 2024
8. THE IMPORTANCE OF APPLYING SELECTED INDUSTRIAL ENGINEERING TOOLS AND METHODS IN PROCESS IMPROVEMENT.
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PRAJOVA, VANESSA, SKURKOVA, KATARINA LESTYANSZKA, PRAJ, FILIP, and BESTVINOVA, VIERA
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METHODS engineering ,INDUSTRIAL engineering ,CONSUMER complaints ,INDUSTRIAL costs ,TOTAL quality management ,MANUFACTURING processes - Abstract
Among the key activities of managing an organisation is to be able to make timely and correct decisions. Making the right decision is necessary to ensure the organisation's competitiveness [Lestyanszka 2014a]. Organisations are trying to reduce production costs as much as possible, but this, on the other hand, brings negatives in the form of products that do not meet customer expectations. This phenomenon, however, has other downstream processes that burden the organisation and make it more difficult to continue its activities. These are customer complaints, the cost of eliminating the claimed defects, downtime, etc. [Lestyanszka 2014b, Husain 2021]. Therefore, the successful functioning of any organisation depends on its ability to adapt to changing customer requirements, as these are a priority in the market [Szander 2014, McDonnell 2013]. An effective tool for quality improvement is statistical methods and tools, which are not only advisable but essential to be implemented in production processes. Without systematic quality management, an organisation cannot grow, as it has to combine enormous efforts in developing and introducing new products with maximum quality maintenance of the already established ones. [ABSTRACT FROM AUTHOR] more...
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- 2023
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9. MBSE- Based Construction Method of Unified Information Model for Production Equipment
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Li, Jun, Dou, Keqin, Zhou, Yong, Liu, Jinsong, Li, Qing, Tang, Yiqiang, Filipe, Joaquim, Editorial Board Member, Ghosh, Ashish, Editorial Board Member, Prates, Raquel Oliveira, Editorial Board Member, Zhou, Lizhu, Editorial Board Member, Terzi, Sergio, editor, Madani, Kurosh, editor, Gusikhin, Oleg, editor, and Panetto, Hervé, editor more...
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- 2023
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10. Research and Application of Comprehensive Health Assessment Based on Production Equipment of Bulk Cargo Terminal
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Li, Xin, Tang, Xuliang, Chen, Renhui, Angrisani, Leopoldo, Series Editor, Arteaga, Marco, Series Editor, Chakraborty, Samarjit, Series Editor, Chen, Jiming, Series Editor, Chen, Shanben, Series Editor, Chen, Tan Kay, Series Editor, Dillmann, Rüdiger, Series Editor, Duan, Haibin, Series Editor, Ferrari, Gianluigi, Series Editor, Ferre, Manuel, Series Editor, Jabbari, Faryar, Series Editor, Jia, Limin, Series Editor, Kacprzyk, Janusz, Series Editor, Khamis, Alaa, Series Editor, Kroeger, Torsten, Series Editor, Li, Yong, Series Editor, Liang, Qilian, Series Editor, Martín, Ferran, Series Editor, Ming, Tan Cher, Series Editor, Minker, Wolfgang, Series Editor, Misra, Pradeep, Series Editor, Mukhopadhyay, Subhas, Series Editor, Ning, Cun-Zheng, Series Editor, Nishida, Toyoaki, Series Editor, Oneto, Luca, Series Editor, Panigrahi, Bijaya Ketan, Series Editor, Pascucci, Federica, Series Editor, Qin, Yong, Series Editor, Seng, Gan Woon, Series Editor, Speidel, Joachim, Series Editor, Veiga, Germano, Series Editor, Wu, Haitao, Series Editor, Zamboni, Walter, Series Editor, Zhang, Junjie James, Series Editor, Tan, Kay Chen, Series Editor, and Deng, Zhidong, editor more...
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- 2023
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11. Green Design: Introducing a New Methodology to Increase Environmental Sustainability in Capital Investments at AstraZeneca
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Magnusson, Filip, Bohman, Mikael, Bellgran, Monica, Rannenberg, Kai, Editor-in-Chief, Soares Barbosa, Luís, Editorial Board Member, Goedicke, Michael, Editorial Board Member, Tatnall, Arthur, Editorial Board Member, Neuhold, Erich J., Editorial Board Member, Stiller, Burkhard, Editorial Board Member, Stettner, Lukasz, Editorial Board Member, Pries-Heje, Jan, Editorial Board Member, Kreps, David, Editorial Board Member, Rettberg, Achim, Editorial Board Member, Furnell, Steven, Editorial Board Member, Mercier-Laurent, Eunika, Editorial Board Member, Winckler, Marco, Editorial Board Member, Malaka, Rainer, Editorial Board Member, Alfnes, Erlend, editor, Romsdal, Anita, editor, Strandhagen, Jan Ola, editor, von Cieminski, Gregor, editor, and Romero, David, editor more...
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- 2023
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12. Systematic Green Design in Production Equipment Investments: Conceptual Development and Outlook
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Birkie, Seyoum Eshetu, Chavez, Zuhara Zemke, Lindahl, Emma, Kurdve, Martin, Bruch, Jessica, Bellgran, Monica, Bohlin, Lotta, Bohman, Mikael, Elvin, Malin, Rannenberg, Kai, Editor-in-Chief, Soares Barbosa, Luís, Editorial Board Member, Goedicke, Michael, Editorial Board Member, Tatnall, Arthur, Editorial Board Member, Neuhold, Erich J., Editorial Board Member, Stiller, Burkhard, Editorial Board Member, Stettner, Lukasz, Editorial Board Member, Pries-Heje, Jan, Editorial Board Member, Kreps, David, Editorial Board Member, Rettberg, Achim, Editorial Board Member, Furnell, Steven, Editorial Board Member, Mercier-Laurent, Eunika, Editorial Board Member, Winckler, Marco, Editorial Board Member, Malaka, Rainer, Editorial Board Member, Alfnes, Erlend, editor, Romsdal, Anita, editor, Strandhagen, Jan Ola, editor, von Cieminski, Gregor, editor, and Romero, David, editor more...
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- 2023
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13. Development Strategy of China’s Offshore Oil and Gas Equipment
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Cheng Bing, Fu Qiang, Li Qingping, Liu Yibin, Zhu Lin, and Wu Ying
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offshore oil and gas ,exploration equipment ,drilling equipment ,construction equipment ,production equipment ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
Offshore oil and gas equipment is crucial for developing offshore oil and gas and strengthening the marine power of a country. In recent years, China’s offshore oil and gas equipment industry has made a series of breakthroughs and is realizing the leap toward ultra-deep water; however, there are still some drawbacks. This study reviews the development status of offshore oil and gas exploration, drilling, construction, and production equipment globally and in China, analyzes the gap between China and the advanced international level, and proposes the key development directions for each type of equipment. Future development goals and the following suggestions are further proposed: (1) upgrading the conventional marine equipment industry through unmanned, intelligent, and standardized development, (2) establishing a system of technologies and equipment for 3000-meter-level oil-gas field development, (3) formulating a key core equipment list to accelerate breakthroughs of core equipment, (4) accelerating the domestication of underwater production equipment, (5) achieving breakthroughs regarding floating liquefied natural gas facilities, (6) improving the marine equipment test and certification system, and (7) exploring the integrated development of offshore oil and gas equipment and offshore new energy resources, thereby providing references for future development of offshore oil and gas equipment in China. more...
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- 2023
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14. Device Anomaly Detection Algorithm Based on Enhanced Long Short-Term Memory Network.
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LUO Xin, CHEN Jing, YUAN Dexin, and YANG Tao
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ALGORITHMS ,SHORT-term memory ,GENETIC algorithms ,MULTIPLE correspondence analysis (Statistics) ,LONG short-term memory - Abstract
The problems in equipment fault detection include data dimension explosion, computational complexity, low detection accuracy, etc. To solve these problems, a device anomaly detection algorithm based on enhanced long short-term memory (LSTM) is proposed. The algorithm first reduces the dimensionality of the device sensor data by principal component analysis (PCA), extracts the strongly correlated variable data among the multidimensional sensor data with the lowest possible information loss, and then uses the enhanced stacked LSTM to predict the extracted temporal data, thus improving the accuracy of anomaly detection. To improve the efficiency of the anomaly detection, a genetic algorithm (GA) is used to adjust the magnitude of the enhancements made by the LSTM model. The validation of the actual data from the pumps shows that the algorithm has significantly improved the recall rate and the detection speed of device anomaly detection, with the recall rate of 97. 07%, which indicates that the algorithm is effective and efficient for device anomaly detection in the actual production environment. [ABSTRACT FROM AUTHOR] more...
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- 2023
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15. Reducing Occupational Risks in Industrial Processes: Analysis and Recommendations for Improving Safety in Production Equipment and Facilities.
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Grafkina, Marina Vladimirovna, Sviridova, Evgeniya Yurevna, and Goryacheva, Elena Viktorovna
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MANUFACTURING processes ,WORK-related injuries ,INDUSTRIAL safety ,QUALITATIVE research ,INVESTIGATION reports - Abstract
This study is centered on devising preventive strategies to enhance safety and diminish occupational risks associated with the operation of novel industrial facilities and production equipment. Utilizing qualitative research methods, this investigation scrutinizes reporting documents, exploiting indicators of occupational injuries and identified causes of such injuries. A combination of monographic and statistical methods was leveraged to process the results. An examination of occupational risks reveals that a substantial proportion is linked to production equipment, flawed technological processes, and substandard conditions of industrial facilities and structures. Informed by the outcomes obtained, recommendations were formulated for establishing and employing feedback mechanisms. This approach facilitated the systematization of causes leading to industrial injuries and the modification of regulatory documentation to curtail occupational risks. The study advocates the development of specific checklists featuring exemplar questions and a unified database for work-related injuries. It also proposes amplifying the legal status of documents that prescribe requirements for production processes. The implementation of these solutions is projected to result in a reduction of occupational risks and work-related injuries. [ABSTRACT FROM AUTHOR] more...
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- 2023
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16. Reproduction of the Main Capital of Forestry Economy in the Conditions of Digitalization, European Integration and Decentralization: The Ecological and Economic Aspects
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Karpuk Anatolii I., Holian Vasyl A., and Butsenko Rostyslav A.
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main capital ,forestry economy ,investments ,decentralization ,production equipment ,bank lending. ,Business ,HF5001-6182 - Abstract
It is substantiated that the main capital of forestry economy includes the technical-technological, production-economic and natural-resource components, which requires the formation of a modern model of ecological and economic regulation of its reproduction to prevent the processes of exhausting and unbalanced forest use. It is determined that at the present moment the decisive influence on the paces, proportions and scale of reproduction of the main capital of forestry economy is exercised by the processes of European integration, digitalization and decentralization, which to some extent is reflected in the State Strategy for Forest Management of Ukraine until 2035. Studies have shown that in 2013–2021 in the dynamics of most articles of capital expenditures for the purchase of production equipment, cars, devices, machinery and mechanisms, there is an upward trend, owing to both the real growth of capital investments and devaluation-inflationary processes. It is revealed that in 2013–2021 there is a reduction in total capital expenditures for the purchase of road construction equipment, which reduces the ability of permanent forest users to develop a network of forestry roads. It is substantiated that deepening the digital transformation of the forest management system and the movement of forest products requires an increase in capital expenditures in the acquisition of modern software and other information and digital technologies, which will lead to an increase in the share of intangible assets in the structure of main capital of forestry economy. It is found that in recent years certain institutional prerequisites have been formed for diversification of sources of financial and investment support for the reproduction of fixed capital of forestry economy due to an increase in the volume of bank lending and additional attraction of foreign investments. It is proved that a perspective institutional form of diversification of sources of financing for the reproduction of main capital are public-private partnership agreements, which will ensure the consolidation of resources of the public and corporate sectors to accelerate the processes of expanded reproduction and economic development of the forest resource potential of the country. more...
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- 2023
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17. Possibilities of increasing production efficiency by implementing elements of augmented reality.
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TROJANOWSKA, Justyna, KAŠČAK, Jakub, HUSÁR, Jozef, and KNAPČÍKOVÁ, Lucia
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PRODUCTION increases , *VECTOR data , *USER interfaces , *AUTOREGRESSIVE models , *INTEGRATED software - Abstract
The publication reflects the current situation concerning the possibilities of using augmented reality (AR) technology in the field of production technologies with the main intention of creating a tool to increase production efficiency. It is a set of individual steps that respond in a targeted manner to the possible need for assisted service intervention on a specific device. The publication chronologically describes the procedure required for the preparation and processing of a CAD model. For this preparatory process, the PTC software package is used which meets the requirements for each of the individual operations. The first step is the routine preparation of CAD models and assemblies. These are prepared based on real models located on the device, and their shape and dimensions correlate with the dimensions of the model on the device. The second phase is the creation and timing of the disassembly sequence. This will provide the model with complete vector data, which is then paired with the CAD models in AR. This phase is one of the most important. It determines the location of the model concerning its relative position on the device, provides information on the relocation of parts of the model after the sequence is started, and essentially serves as a template for the interactive part of the sequence. The last two phases are used to connect CAD models with vector data, determine their position for the position mark, and prepare the user interface displayed on the output device. The result of this procedure is a functional disassembly sequence, used for assisted service intervention of a worker in the spindle drive of the Emco Mill 55 device. [ABSTRACT FROM AUTHOR] more...
- Published
- 2022
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- Published
- 2024
19. Potential of Eddy Current Pulsed Thermography as a Nondestructive Testing Method.
- Author
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Liang, Yiping, Bai, Libing, Zhang, Xu, Ren, Chao, and Cheng, Yuhua
- Abstract
The parts of working machinery have always suffered from various working conditions in the process of use (e.g., high temperature, high humidity, and high pressure) that may generate flaws, pitting, thermal fatigue crack and other types of defects on the surface or inside. Because these tiny defects carry big safety risks, regular detection is necessary to ensure the reliability of the production equipment. [ABSTRACT FROM AUTHOR] more...
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- 2022
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20. Identification and Reconstruction of Impact Load for Lightweight Design of Production Equipment.
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Oh, Jungwhan, Choi, Sunghoon, Hwang, Jiyoung, Yoon, Jaekeun, Kang, Haejung, and Kim, Dongchoul
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IMPACT loads ,STRAINS & stresses (Mechanics) ,FINITE element method ,STRAIN gages - Abstract
This paper proposes a method for determining externally applied impact loads on complex structures using strain analysis. An impact load transducer was developed to determine impact loads. Using this transducer (which incorporates strain gauges), the relationship between the measured strains and applied impact load was studied, and a model for conversion from strain analysis to impact load was developed. The reconstructed impact curve that characterizes the impact peak force, impact duration, and load in the steady state after impact was employed as an input load curve in finite element analysis. The reconstructed impact load was validated by comparing the structural strain measured on the specimen in the experiments and the strain calculated by the simulations. The results show that the maximum difference between experimentally and numerically determined structural peak strains is 3.2 με. Moreover, the method was validated by predicting the impact load of a descending vehicle chassis on the production equipment in an automotive production line. It demonstrated high efficiency and accuracy. The reconstructed load curve obtained using the developed method provides high efficiency in addition to high accuracy. Furthermore, it circumvents the complexities of modeling dynamic impact simulation, including complex impactor shape, interface, and friction conditions. Thus, the developed method provides scholars with an efficient approach for an extensive study of the responses of complex structures in various fields such as stress strain analysis, fatigue analysis, and topology optimization for lightweight design of production equipment. [ABSTRACT FROM AUTHOR] more...
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- 2022
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21. Identification and Reconstruction of Impact Load for Lightweight Design of Production Equipment
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Jungwhan Oh, Sunghoon Choi, Jiyoung Hwang, Jaekeun Yoon, Haejung Kang, and Dongchoul Kim
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impact load identification ,reconstruction of impact load curve ,lightweight design ,finite element analysis ,production equipment ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
This paper proposes a method for determining externally applied impact loads on complex structures using strain analysis. An impact load transducer was developed to determine impact loads. Using this transducer (which incorporates strain gauges), the relationship between the measured strains and applied impact load was studied, and a model for conversion from strain analysis to impact load was developed. The reconstructed impact curve that characterizes the impact peak force, impact duration, and load in the steady state after impact was employed as an input load curve in finite element analysis. The reconstructed impact load was validated by comparing the structural strain measured on the specimen in the experiments and the strain calculated by the simulations. The results show that the maximum difference between experimentally and numerically determined structural peak strains is 3.2 με. Moreover, the method was validated by predicting the impact load of a descending vehicle chassis on the production equipment in an automotive production line. It demonstrated high efficiency and accuracy. The reconstructed load curve obtained using the developed method provides high efficiency in addition to high accuracy. Furthermore, it circumvents the complexities of modeling dynamic impact simulation, including complex impactor shape, interface, and friction conditions. Thus, the developed method provides scholars with an efficient approach for an extensive study of the responses of complex structures in various fields such as stress strain analysis, fatigue analysis, and topology optimization for lightweight design of production equipment. more...
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- 2022
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22. Concept of a Data-Driven Business Model for Circular Production Equipment
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Herberger, David, Hübner, Marco, Riesener, Michael, Kuhn, Maximilian, Blondrath, Aileen, Tariq, Balaj, Schuh, Günther, Herberger, David, Hübner, Marco, Riesener, Michael, Kuhn, Maximilian, Blondrath, Aileen, Tariq, Balaj, and Schuh, Günther more...
- Abstract
New legislation and the social movement around circular economy issues are currently forcing manufacturing companies to reassess the sustainability of their production and value chain. The circular economy is becoming an important economic concept, challenging manufacturing companies to develop approaches for realising resource-efficient production and usage of products. One potential area for sustainable production lies in the production equipment used for example in automotive production, such as robots, grippers and fixtures. However, new business models are needed to realise sustainable and recyclable production equipment, as existing ones do not take this into account. This paper presents an approach that deals with business model innovation and a digital platform ecosystem for circular production equipment. First, established business models are analysed for their transferability to automotive production. In particular, the use of subscriptions for production equipment is focused on and evaluated. The assessment is based on interviews with experts from equipment manufacturers and is quantified by them. The result is a presentation of the potential of the developed business model and a corresponding "as-a-service" concept for implementation using a digital platform. more...
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- 2023
23. Circular production investments : What a circular production investment is and how it can be designed
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Bohlin, Lotta and Bohlin, Lotta
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One of the biggest emitters of greenhouse gas in Sweden is the industry sector, and in order to reach the national and global environmental goals, a change is needed. To become an environmentally sustainable producer, the whole life cycle must be taken into consideration, from choice of resources, to production, to use, and End-of-Life treatment. This thesis covers production, more particularly production equipment and the sustainability aspect circularity. Two research questions are answered; what is a circular production investment, and how can a production investment be designed to reach a higher level of circular maturity? Circularity, or circular economy, aims to close the loop of resources, and this thesis covers various aspects of how production equipment, and investments of production equipment can be designed to achieve that. The frame of reference presents models and tools for circularity, as, for instance, life cycle assessment, life cycle cost, life cycle extension strategies, eco-design, and servitization. This research was done through a literature review, a survey, in-depth-interviews, and a final validation workshop. It has been found that there are many aspects to consider when investing in production equipment, but also that there is a knowledge gap in industry of what circularity is and how to prioritize circularity in the requirements from customer to supplier. This thesis was written as a part of a collaborative research project between academy, research, and industry. The findings in this thesis were used to develop three guidelines made for practical implementation within industry, they cover considerations before investing in new production equipment, how to design production equipment in the most circular way, and considerations at End-of-Life or End-of-Use for production equipment. In order for a production investment to be circular, it is required that the treatment of equipment at its End-of-Life is planned already in the design phase of, En av de största utsläpparna av växthusgaser i Sverige är industrisektorn, och för att kunna nå både nationella och internationella miljömål måste något förändras. För att kunna bli en miljövänlig producent måste hela livscykeln av ens produkter övervägas, från val av resurser, till produktion, till användning och behandling av uttjänta produkter. Den här uppsatsen täcker produktion, mer precis täcker den produktionsutrustning och hållbarhetsaspekten cirkularitet. Två forskningsfrågor besvaras; vad är en cirkulär produktionsinvestering och hur kan en produktionsinvestering planeras för att nå en högre nivå av cirkulär mognad? Cirkularitet, eller cirkulär ekonomi, är när man försöker stänga ”loopen” (cirkeln/slingan) av resurser. Den här uppsatsen täcker olika aspekter av hur produktionsutrustning och investeringar av produktionsutrustning kan planeras för att nå en sluten loop. I det teoretiska ramverket för uppsatsen finns olika modeller och verktyg för cirkularitet, som exempelvis livscykelanalys, livscykelkostnad, strategier för att förlänga livscykeln, eco-design och servitisering. Den här studien gjordes genom en litteraturstudie, en enkät, intervjuer, och en workshop för validering. Det har framkommit att det finns många aspekter att överväga när man investerar i produktionsutrustning, men också att det finns en kunskapslucka inom industrin gällande vad cirkularitet är och hur man ska prioritera cirkularitet i kravspecifikationer till sina leverantörer. Den här uppsatsen skrevs inom ett forskningsprojekt som är ett samarbete mellan akademi, forskning och industri. Det som har hittats genom den här undersökningen har använts för att utveckla tre riktlinjer som ska kunna användas inom industrin. De täcker avväganden före en investering av produktionsutrustning, hur produktionsutrustning kan designas på det mest cirkulära sättet och avväganden vid behandling av uttjänt produktionsutrustning. För att en produktionsinvestering ska vara cirkulär krävs det att behand more...
- Published
- 2023
24. Joint Estimation of Additive and Parametric Faults
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Koen Classens, Stan Verbeek, W.P.M.H. (Maurice) Heemels, and Tom Oomen
- Subjects
Fault Estimation ,Control and Systems Engineering ,Linear Fractional Representation ,Fault Isolation ,Predictive Maintenance ,Fault Detection ,Mechatronic Systems ,Fault Diagnosis ,Production Equipment - Abstract
The condition of systems, such as production equipment, typically deteriorates over time, increasing the risk of failure and associated unscheduled downtime. Predictive maintenance is a strategy to prevent failure, while maximizing the life cycle of equipment within a system. This paper contributes in this context to the theory of real-time fault diagnosis with an approach that can jointly estimate additive and parametric faults. The proposed fault diagnosis system consists of detection filters which are complemented with a residual evaluator, enabling effective fault isolation and fault estimation for open-loop and closed-loop controlled systems. The effectiveness of this unified approach is illustrated on a mass-spring-damper system. more...
- Published
- 2022
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