Author Details

Objectives: Random analysis of 74 kg Indian human male subject has been done in this study. Finite element model of human subject has been developed using anthropometric data corresponding to 95th percentile 74 kg human subject. Method/Analysis: Finite element method has been used to study the dynamic response of the human subject when it is subjected to random vibration. Geometry has been developed using the designing tool i.e., Solid Works and analysis has been done on the simulation software i.e., Ansys. During this study, different magnitude of acceleration i.e., 0.2, 0.4 and 0.8 m/s² has been applied in three different directions i.e., vertical, fore-and-aft and lateral direction. Findings: Acceleration of magnitude 0.2, 0.4 and 0.8 m/s² has been applied in all the directions and results in the form of deformations and Von-mises stresses is found at these magnitude of acceleration applied in all the directions. It has been observed that maximum effect of vibration in terms of stress and deformation in human subject is found when the vibration is applied in vertical direction at a magnitude of 0.8 m/s². The minimum effect of vibration is found when vibration is applied in the lateral direction. Applications/Improvement: The results obtained from current study will be beneficial to design automobile seats and components. Experimental study can also be performed to validate the obtained results.

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Random Analysis using FEM of Indian Human Subject in Standing Posture

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Authors

Rajender Kumar ¹, Sachin Kalsi ¹, Ishbir Singh ¹

Affiliations
1 Department of Mechanical Engineering, Chandigarh University, Ludhiana –140301, Punjab, IN

Source

Indian Journal of Science and Technology, Vol 11, No 28 (2018), Pagination: 1-6

Abstract

Background / Objectives: To find the human response in standing posture while subjected to random vibration conditions at different acceleration conditions.

Methods/Statistical Analysis: It is a numerical approach, in which author has done analysis using FEM, and during this study statistical table has used to represent the data in Tabular form with appropriate figures that have used during current study.

Findings: Human body suffers from vibration and its ill effects on daily activities. There are many sources of generation of vibrations that effect comfort and health of human i.e. harmonic vibrations, transient vibrations and random vibrations. The tendency to come in contact with random vibrations and its effect is more as compared to other vibration conditions.

Improvements/Applications: Taking a special case of random vibrations and standing posture of human body, this study has been performed. The results obtained using this study shows that more stresses are produced in human body when random vibrations have been applied in vertical direction. FEM model of 76 kg male Indian human subject has been modelled using 95^th anthropometric data available in literature.

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