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1. Management of diseases and insect-pests of French bean in Northwestern Indian Himalayan region using integrated approaches

Author

Chandrashekara C, Mishra K K, Stanley J, Subbanna A R N S, Hooda K S, Pal R S, Bhatt J C, and Pattanayak A

Subjects
Bioagents, botanicals, eco-friendly managemen, French bean, fungicides, insecticides, Plant culture, SB1-1110
Abstract

French bean (Phaseolus vulgaris L.) production is adversely affected by many pathogens and insect-pests worldwide. In the present investigation, effect of different bio-fortified composts, organic amendments, botanicals and pesticides were evaluated against diseases and insect- pests of french bean. The results showed that seed treatment and drenching with Trichoderma harzianum strain 11, followed by soil application of fortified farmyard manure resulted in the lowest root rot incidence, highest germination, vigour and yield in french bean. In another set of experiment, soil incorporation of Parthenium hysterophorus, Urtica dioicaandLantana camarawere found to reduce root rot incidence with high germination and pod yield. Among the bioproducts and botanicals tested, foliar spray of cow dung extract (50%) reduced angular leaf spot, rust and bacterial blight severity by 51, 69 and 25 per cent, respectively. Among the fungicides, foliar application of azoxystrobin 23 SC (0.1%) and difenoconazole 25EC (0.025%), also reduced angular leaf spot and rust severity by 93 and 90 per cent, respectively. Among different insect pest management strategies under field conditions, cartap hydrochloride and batain seed extract registered low sucking bug (Chauliops choprai) population. Integrated approaches including bio-agents, botanicals along with chemicals for managing these diseases and insect-pests were found appropriate options. Out of six different IPM modules evaluated, seed treatment with carbendazim along with foliar spray of 0.1% azoxystrobin and cartap hydrochloride resulted in lowest root rot, rust, angular leaf spot, bacterial blight and Chaulopsis choprai bug population in French bean.

Published
2022
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2. Mushrooms for integrated and diversified nutrition

Author

Meera Pandey, G.C. Satisha, Shamina Azeez, G. Senthil Kumaran, and Chandrashekara C

Subjects
Mushroom, Nutrition, Oyster, Shiitake, Protein, Plant culture, SB1-1110
Abstract

Mushrooms were considered as “Objects of mystery” by the primitive man, and were realized as food much before civilization. Mushrooms have been variously used in different cultures from being priced as “Food of Gods” in the Roman culture to tools of psychological sedation for the Mexican warriors. Most of the edible mushrooms are saprophytic growing on decomposed organic plant matter. Mushrooms play varied and important roles in human nutrition and health. They are unique nutrition dense vegetables with quality high protein, very low fat, zero cholesterol, low carbohydrates, low glycemic index, high fiber, good cardiac friendly sodium to potassium ratio and some unique bioactive compounds like ergothioneine and polysaccharides. These unique nutritive properties of mushrooms make them a recommended food for diabetics, body weight management, hypertension and cardiac well-being. The concept of selenium rich mushrooms for slowing down the progress of AIDS has been gaining importance in the recent years. Apart from being a healthy vegetable, the unique lignocellulosic waste-based production system of mushrooms makes them the most ecofriendly zero waste green technology with immense environmental benefits (Gupta et al., 2004, Jain et al., 2014 and & Pandey et al., 2014). Despite many environmental and nutritional benefits; mushrooms yet have not become a part of daily nutrition in the Indian diet and the per capita consumption still remains very low at 70 grams per annum. There is a need to educate and enhance the awareness among the people about the nutritional and health potential of mushrooms. There is also the need to draw the attention towards integrating mushroom technology in successful agro-residue management programs, livelihood programs, national nutrition programs and women empowerment and rural development schemes which ultimately culminate in providing better daily nutrition.

Published
2022
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3. Nonlinear Vibration of an Euler–Bernoulli Beam Using Variational Iteration Procedure

Author

Shankaranarayana, Suresh N., Chandrashekara, C. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Chandrashekara, C. V., editor, Mathivanan, N. Rajesh, editor, and Hariharan, K., editor

Published
2024
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4. Response Characteristic Analysis of a 10 DOF Full Car Model

Author

Prajwala, K., Harsha, S. K. V., Aniruddha, P. S., Chandrashekara, C. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Chandrashekara, C. V., editor, Mathivanan, N. Rajesh, editor, and Hariharan, K., editor

Published
2024
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5. Dynamic Analysis of a Multi Disc Flexible Rotor-Bearing System with Isotropic Stiffness by Varying Geometric Parameters

Author

Greeshma, S., Chandrashekara, C. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Chandrashekara, C. V., editor, Mathivanan, N. Rajesh, editor, and Hariharan, K., editor

Published
2024
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6. Nonlinear Response Characteristic Analysis of a Quadrotor with Suspended Payload

Author

Matsa, Pranav, Rao, Chaithanya Krishna, Abhay Rao, A. G., Aniruddha, P. S., Chandrashekara, C. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Chandrashekara, C. V., editor, Mathivanan, N. Rajesh, editor, and Hariharan, K., editor

Published
2024
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7. Optimization of System Parameter of Functionally Graded Sandwich Beams for Improved Damping Characteristics

Author

Abhay Rao, A. G., Rao, Chaithanya Krishna, Aniruddha, P. S., Chandrashekara, C. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Chandrashekara, C. V., editor, Mathivanan, N. Rajesh, editor, and Hariharan, K., editor

Published
2024
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8. Scaling and Slenderness Effects on Cell Dynamics: A Comparative Study Between Analytical and Numerical Approaches

Author

Ashish, S., Chirag, R., Abhay Rao, A. G., Chandrashekara, C. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Chandrashekara, C. V., editor, Mathivanan, N. Rajesh, editor, and Hariharan, K., editor

Published
2024
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9. Dynamic Analysis of a Single Disc Flexible Rotor-Bearing System with Isotropic Stiffness by Varying Geometric Parameters

Author

Rakshith, K., Chandrashekara, C. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Chandrashekara, C. V., editor, Mathivanan, N. Rajesh, editor, and Hariharan, K., editor

Published
2024
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10. Study on the Response Characteristics of a Quadcopter for Various Propeller Configurations

Author

Chandrashekara, C. V., Ashwin, J. C., Mathur, Arnab, Karuneswara, D., Bharadwaj, R., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A.M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Kumar, Deepak, editor, Sahoo, Vineet, editor, Mandal, Ashok Kumar, editor, and Shukla, Karunesh Kumar, editor

Published
2024
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11. Dynamic Characteristic Analysis of Functionally Graded Beams

Author

Krishna Rao, Chaithanya, Ayanur Giri, Abhay Rao, Shastry, Aniruddha Prasanna, Manjunath, Shashaank Thippur, Chandrashekara, C. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A.M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Kumar, Deepak, editor, Sahoo, Vineet, editor, Mandal, Ashok Kumar, editor, and Shukla, Karunesh Kumar, editor

Published
2024
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12. Simulation Study on Material Gradation of Functionally Graded Beams

Author

Rao, Chaithanya Krishna, Abhay Rao, Ayanur Giri, Prasanna Shastry, Aniruddha, Thippur Manjunath, Shashaank, Chandrashekara, C. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A.M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Kumar, Deepak, editor, Sahoo, Vineet, editor, Mandal, Ashok Kumar, editor, and Shukla, Karunesh Kumar, editor

Published
2024
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13. Systematic Procedure for Selection of Candidate Materials for Microspines

Author

Mehta, Aditya, Ajay, V. H., Banagar, Pranav, Yemmireddy, Gowtham M. V. A., Chandrashekara, C. V., Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A.M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Kumar, Deepak, editor, Sahoo, Vineet, editor, Mandal, Ashok Kumar, editor, and Shukla, Karunesh Kumar, editor

Published
2024
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15. Dynamic Characteristics of Human Hand-Arm System—Analytical and Simulation Approaches

Author

Raj Dhanush, Srinivaasappa Indira, Gurunath, Prajwal, Kamath, Prajwal, Ninad, S. Murthy, Chandrashekara, C. V., Cavas-Martínez, Francisco, Editorial Board Member, Chaari, Fakher, Series Editor, di Mare, Francesca, Editorial Board Member, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Editorial Board Member, Ivanov, Vitalii, Series Editor, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Gupta, Vijay Kumar, editor, Amarnath, C., editor, Tandon, Puneet, editor, and Ansari, M. Zahid, editor

Published
2023
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16. Dynamic Analysis of MCF-7 Using Tensegrity Model

Author

Chandan Bharadwaj, B. V., Abiram, K., Harish, K., Vivek, S., Chandrashekara, C. V., Cavas-Martínez, Francisco, Editorial Board Member, Chaari, Fakher, Series Editor, di Mare, Francesca, Editorial Board Member, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Editorial Board Member, Ivanov, Vitalii, Series Editor, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Gupta, Vijay Kumar, editor, Amarnath, C., editor, Tandon, Puneet, editor, and Ansari, M. Zahid, editor

Published
2023
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17. Parametric Sensitivity Analysis of Structure Stability: Mathematical Formulation and Analysis

Author

Meka, Pranay A., Rokhade, Harshad, Mannur, Kiran Kumar, Ganiger, Sangamesh Giramalla, Chandrashekara, C. V., Cavas-Martínez, Francisco, Editorial Board Member, Chaari, Fakher, Series Editor, di Mare, Francesca, Editorial Board Member, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Editorial Board Member, Ivanov, Vitalii, Series Editor, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Gupta, Vijay Kumar, editor, Amarnath, C., editor, Tandon, Puneet, editor, and Ansari, M. Zahid, editor

Published
2023
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19. Finite Element Modelling of the Human Lumbar Vertebrae for Dynamic Analysis

Author

S. I., Raj Arjun, Goplani, Parth, Suswaram, Pavan, Chandrashekara, C. V., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, di Mare, Francesca, Series Editor, Kumar, Rajeev, editor, Chauhan, Vishal S., editor, Talha, Mohammad, editor, and Pathak, Himanshu, editor

Published
2022
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20. Simulation Modeling of 37 Degrees-of-Freedom ICF Coach

Author

Mahadikar, Bharath B., Singh, Charanpreet, K. S., Akarsh, Chandrashekara, C. V., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, di Mare, Francesca, Series Editor, Kumar, Rajeev, editor, Chauhan, Vishal S., editor, Talha, Mohammad, editor, and Pathak, Himanshu, editor

Published
2022
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21. Mode Based Crack Identification of Rotor

Author

Ali, Ridha, Pooja Priya, T., Rashmi, V., Chandrashekara, C. V., Motru, Suneel, Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, di Mare, Francesca, Series Editor, Kumar, Rajeev, editor, Chauhan, Vishal S., editor, Talha, Mohammad, editor, and Pathak, Himanshu, editor

Published
2022
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22. Modal Analysis of 3-RRR SPM Model

Author

Kulkarni, Vijaykumar, Chandrashekara, C. V., Sethuram, D., Cavas-Martínez, Francisco, Series Editor, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Series Editor, Ivanov, Vitalii, Series Editor, Kwon, Young W., Series Editor, Trojanowska, Justyna, Series Editor, di Mare, Francesca, Series Editor, Kumar, Rajeev, editor, Chauhan, Vishal S., editor, Talha, Mohammad, editor, and Pathak, Himanshu, editor

Published
2022
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37. Variety VL Mandua 379

Author

Sood, Salej, Gupta, Arun, Khulbe, R. K., Pandey, B. M., Chandrashekara, C., Rajashekara, H., Bisht, G. S., Panchpal, D. S., and Kanwal, R. S.

Published
2018

38. Simulation of endolymph flow for response of cupula

Author

Anudeep Joshi, Akhilesh Hari Prakash, Chandrashekara C, and Darshan Babu

Subjects
Physics, Vestibular system, Benign paroxysmal positional vertigo, Semicircular canal, Endolymph, Materials Science (miscellaneous), Horizontal semicircular canal, Flow (psychology), Anatomy, medicine.disease, Industrial and Manufacturing Engineering, medicine.anatomical_structure, otorhinolaryngologic diseases, medicine, Head movements, Body orientation, sense organs, Business and International Management
Abstract

Semicircular canal plays an important role in sensing of human body orientation. Cupula is the system in semicircular canal responsible for sensing rotational head movements. It is excited by the flow of endolymph caused due to inertia of head movement. There are various disorders related to semicircular canal, the most common disorder is Benign Paroxysmal Positional Vertigo (BPPV). Present work focuses on determination of response of cupula due to endolymph flow in the horizontal semicircular canal. Variation of pressure generated on cupula by endolymph for different rotational velocity of head is studied and reported. Response of cupula with appropriate boundary conditions is extracted. Results obtained open up new area of research in better understanding the behavior of cupula with endolymph flow. It may aid in the betterment of curing BPPV.

Published
2020

39. Dynamic analysis of a discretized aircraft with an integrated bio-dynamic pilot model using Simulink and MSC Adams

Author

Adarsha Balila, C Hari Gowtham, Chandrashekara C, and B N Ankush

Subjects
Discretization, Computer science, business.industry, Matlab simulink, Materials Science (miscellaneous), Structural engineering, Industrial and Manufacturing Engineering, Displacement (vector), Vibration, Fuselage, System parameters, Pilot model, Head (vessel), Business and International Management, business
Abstract

A free vibration analysis is carried out on a discretized Fokker aircraft with an integrated bio-dynamic pilot model. It is an attempt to study the dynamic behavior of bio-dynamic pilot model, when the vibration is induced in aircraft. The system is assumed to have an eleven degree-of-freedom including bouncing motion of tyres, fuselage, seating system and pilot’s head along with angular pitching and rolling of fuselage. A robust model is developed using both MatLab Simulink and MSC Adams. System parameters are borrowed from the earlier reported literature of the present authors. Simulation is carried out for various initial input conditions. Responses of fuselage and pilot’s head are reported for initial displacement considered at nose landing tyre. Natural frequencies of the system are generated and compared with earlier reported results. A good agreement is noticed among the results obtained via all the three of analysis approaches.

Published
2020

40. Free vibration analysis of a discretized aircraft with an integrated biodynamic pilot model – modal approach

Author

C Hari Gowtham, Chandrashekara C, Adarsha Balila, and B N Ankush

Subjects
Discretization, business.industry, Computer science, Materials Science (miscellaneous), Modal analysis, Structural engineering, Industrial and Manufacturing Engineering, Vibration, Modal, Normal mode, Pilot model, Runway, Business and International Management, business
Abstract

This work deals with the formulation of mathematical model for a discretized aircraft with combined seated biodynamic pilot model. The developed model provides scope for exploring the dynamic characteristics of the aircraft system and pilot under various runway operations and landing impacts. Modal analysis approach is used to obtain the free vibration characteristics of multi degrees-of-freedom system. The obtained results like natural frequencies, mode shapes and undamped response curves are reported.

Published
2020

41. Finite element modelling and dynamic characteristic analysis of the human CTL-Spine

Author

Dayanand Shreyas, Rao Ankit, Kumar B.R. Dhruva, B. Khot Mantesh, Harshavardhan Shetty, and Chandrashekara C

Subjects
musculoskeletal diseases, education.field_of_study, Computer science, business.industry, Materials Science (miscellaneous), Modal analysis, Population, Biomechanics, Structural engineering, Industrial and Manufacturing Engineering, Finite element method, Vertebra, Vibration, CTL, medicine.anatomical_structure, Lumbar, medicine, Business and International Management, education, business
Abstract

Persistent exposure to whole body vibrations is the fundamental cause for lower back pain and disc degeneration. With an increasing amount of population exposed to whole body vibrations, a significant number of people experience fatal spine diseases. Substantial research is carried out to reduce the risk of spinal injuries. The dynamic characteristics of the cervical, thoracic and lumbar (CTL) region are studied extensively as individual sections of the spine. Few studies have focused on the CTL spine as an assembly of the three segments. In the present work, an authentic three dimensional geometrical model of the cervical, thoracic and lumbar spine is developed in mimics considering its natural curvature and the intervertebral discs are modeled in Design modeler. The natural frequency and mode shapes of the CTL spine are extracted using free vibration modal analysis considering 4.5 kg point mass on C1 vertebra and distributed mass of 40 kg on the CTL spine in Ansys Workbench. Six natural frequencies and their corresponding vibration modes are obtained from the finite element model. The results of this study aims to provide a reliable model for further biomechanical analysis and ergonomics.

Published
2020

42. Dynamic analysis of MCF-10A and MCF-7: A simulation approach

Author

Chandrashekara C, Chaudhary Shrishti, Barathwaj R. Arun, and Ahmed Mubeen Ayman

Subjects
Materials Science (miscellaneous), Finite element approach, Cell, Cancer, Biology, Selective cytotoxicity, medicine.disease, Industrial and Manufacturing Engineering, medicine.anatomical_structure, Breast cancer, MCF-7, Normal mode, Cancer cell, medicine, Cancer research, Business and International Management, skin and connective tissue diseases
Abstract

Cancer is one of the leading causes of death in the world. Breast cancer is the most common form of cancer among women and is responsible for 15 % of all cancer related deaths. Though there are significant advancements in cancer treatment strategies, clinical tumour treatment methods currently employed are often accompanied by severe side effects as they induce damage to the normal cells along with the cancer cells. The alterations in the biophysical and biomechanical properties of a cell as it undergoes transformation from a normal to cancerous cell results in changes in its dynamic characteristics. These changes can be utilised to induce selective cytotoxicity of tumour cells. In the present study, two simulation models (homogenous and non-homogenous) of normal (MCF-10A) and cancerous (MCF-7) breast cells are developed. A finite element approach using Ansys is adopted to investigate the variation in dynamic characteristics of the cells using the two modelling approaches. Results indicate that the natural frequencies of cells modelled as a homogenous system is greater than that of cells whose sub-cellular material properties are considered for analysis. A comparison of the first four natural frequencies using the two modelling approaches for both MCF-10A and MCF-7 cells are illustrated and the corresponding mode shapes reported. A plot highlighting the variation in the natural frequencies of MCF-10A and MCF-7 using the two modelling approaches is presented.

Published
2020

43. Simulation model of human cupula for free vibration analysis

Author

Darshan Babu, Chandrashekara C, Anudeep Joshi, and Akhilesh Hari Prakash

Subjects
Vestibular system, medicine.medical_specialty, Benign paroxysmal positional vertigo, biology, business.industry, Materials Science (miscellaneous), Audiology, biology.organism_classification, medicine.disease, Industrial and Manufacturing Engineering, Vibration, Vertigo, Fluid solid interaction, Elderly people, Medicine, Business and International Management, business
Abstract

Any dysfunction of vestibular system leads to various diseases, the most common among them is Benign Paroxysmal Positional Vertigo (BPPV). BPPV is most found in elderly people causing vertigo/dizziness which leads to fall and serious injuries. The primary system in inner ear helping in human body balancing and postural adjustment is the cupula. Cupulolithiasis is a type of BPPV caused when otoconia get settles on the cupula. In the present work, a three-dimensional model of cupula and otoconia particle is modelled. A free vibration modal analysis is carried out on the cupula with and without otoconia particle to extract the natural frequency and mode shapes. Change in natural frequency of the cupula due to presence of otoconia particle is presented. Present work has a future scope involving fluid solid interaction (FSI) and extracting response of the cupula incorporating damping to obtain complete dynamic characteristics of cupula. The extracted results help in future investigation of new therapeutical solution to treat BPPV.

Published
2020

44. Modelling and analysis of a modified Dodecapod parallel manipulator

Author

Raj Dhanush, Chandan Bharadwaj, Dhrupad Vijay, and Chandrashekara C

Subjects
business.product_category, Computer science, Materials Science (miscellaneous), Work (physics), Parallel manipulator, Control engineering, Rigidity (psychology), Kinematics, Workspace, Industrial and Manufacturing Engineering, Machine tool, Controllability, Slider, Business and International Management, business
Abstract

Parallel manipulator is one of the areas of research extensively studied by many researchers from past 4-5 decades. Unlike their serial counterparts, parallel manipulators exhibit higher rigidity and controllability when operating at higher speeds. These attributes lead to their application in various fields such as machine tools, simulators and positioning systems. Present work is proposing a modified reconfigurable Dodecapod parallel manipulator. 3D model of the proposed manipulator is successfully developed and kinematics analysis is carried out. Re-configurable sliders are provided to vary the workspace as required. A few illustrative examples are demonstrated for various locations of slider, showing changes in workspace. The novelty of the present manipulator overcomes the workspace limitations of the general Stewart Gough manipulator. Present modified Dodecapod parallel manipulator is capable of improving local kinematic performance.

Published
2020

45. The Dynamic Characteristics of a non-linear main landing gear system of an aircraft during landing

Author

K S Sridhar, S S Adarsha, Chandrashekara C, M V Bharath Narayana, and Arjun Srivathsa

Subjects
business.industry, Computer science, Materials Science (miscellaneous), Modal analysis, Work (physics), Stiffness, Touchdown, Structural engineering, Industrial and Manufacturing Engineering, Nonlinear system, Shock absorber, Fuselage, medicine, Business and International Management, medicine.symptom, business, Landing gear
Abstract

The landing gear plays a very important role during landing by absorbing the high impact energy of the aircraft. The main landing gear absorbs the bulk of the load to reduce the load experienced by both the aircraft fuselage and the nose landing gear. In this paper, a mathematical approach is used to extract the dynamic characteristics of the system. A two-degree of freedom mathematical model of the main landing gear is developed. This model is used to derive the dynamic equations of the landing gear system and to study the behaviour of main landing gear during main gear and nose gear touchdown conditions. The non-linear stiffness and damping co-efficient in an Oleo-Pneumatic shock absorber are integrated into the system to achieve a more accurate response of the system. The response of this system is established by adopting a complex modal analysis approach to account for the non-classical damping exhibited by the system. The obtained spring force, damping force and responses are reported. This work provides an alternative approach using complex modal analysis to obtain results for complex systems exhibiting non-linear characteristics.

Published
2020

46. Economics of wheat as influenced by natural farming, organic farming and recommended package of practices

Author

Alok Behera and Chandrashekara C P

Abstract

A field experiment was laid out on split-plot design with two uneven controls viz. four foliar concentrations of cow urine and jeevamrutha under natural farming which were compared with Organic farming (OF) and Recommended package of practices (RPP) given by UAS, Dharwad. The treatments were replicated thrice. The study revealed that RPP recorded significantly higher grain yield, straw yield, gross return, net return and B:C ratio than OF and natural farming practices. The grain yield reduction in the best treatment (cow urine @ 50 % + jeevamrutha @ 100 %) was 16 % lesser than RPP and 2 % higher than OF. However, the cost of cultivation in natural farming with cow urine @ 50 % + jeevamrutha @ 100 % was lesser to the extent of 6.91 and 30.42 % than RPP and OF. Our study indicates that the irrigated wheat can be grown under natural farming conditions profitably.

Published
2022

49. Variety Central Maize VL Baby Corn 2

Author

Mahajan, Vinay, Babu, R, Gupta, H. S., Agrawal, P. K., Jha, S. K., Khulbe, R. K., Pant, S. K., Chandrashekara, C., Mahanta, D., Koranga, K. S., Bisht, G. S., Pant, M. C., Belwal, N. C., and Bankoti, G. S.

Published
2017

50. Variety Central Maize VL 55

Author

Mahajan, Vinay, Gupta, H. S., Agrawal, P. K., Jha, S. K., Khulbe, R. K., Chandrashekara, C., Mahanta, D., Bisht, G. S., Pant, M. C., Belwal, N. C., and Bankoti, G. S.

Published
2017

Catalog

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