Modelling the Car Seated Human Body using Composite Ellipsoidal Bodies and Evaluation of Size and Shape Specific Stiffness Data for Various Human Segments

International Journal of Mechanical Engineering

© 2020 by SSRG - IJME Journal

Volume 7 Issue 2

Year of Publication : 2020

Authors : Purnendu Mondal , Subramaniam Arunachalam

10.14445/23488360/IJME-V7I2P105

How to Cite?

Purnendu Mondal , Subramaniam Arunachalam, "Modelling the Car Seated Human Body using Composite Ellipsoidal Bodies and Evaluation of Size and Shape Specific Stiffness Data for Various Human Segments," SSRG International Journal of Mechanical Engineering, vol. 7,  no. 2, pp. 26-32, 2020. Crossref, https://doi.org/10.14445/23488360/IJME-V7I2P105

Abstract:

The automobile is one of the primary modes of the worldwide transport system, which must offer the highest level of health, safety, and comfort levels for the occupants inside. The health, safety, and comfort of any moving vehicle and its human occupants are mainly characterized by the vibration generated inside the human body. With the development of modern computer-based technologies, computerized simulations have gained huge importance to anticipate the level of vibration generated inside the automotive seated human body over the last few decades. Many simulation-based research works had been conducted in the past to predict the effect of vibration inside the automotive-human assembly, though one of the key parameters to define the Simulation set up, namely stiffness values of different human segments; had been collected from past relevant research studies or available testing data resources, which overlooked the real shapes and sizes of the human portions, hence, lacking the practical feasibility.
In this research paper, a simplified car seated human-made of ellipsoidal segments have been proposed. The segmental dimensions and masses have been extracted from the anthropometric database, and later, the formulations for a composite fiber-matrix configuration have been implemented. A systematic approach has been outlined to evaluate the three-dimensional stiffness values for all the human portions. The obtained stiffness values have been validated by comparing the data obtained from similar investigations and test results.

Keywords:

Ellipsoidal human segment, car seated human driver, three dimensional stiffness, computerized Simulation, human size specific stiffness.

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