Sahil Savara

Ishbir Singh

Sachin Kalsi

Abstract

In this study, modal frequency response analysis has been performed on an Indian male human subject in sitting posture without backrest under un-damped vibration conditions. The effect of vibration in different parts of human body at different acceleration i.e. 2 0.5, 1 and 1.5 m/s with frequencies range i.e. 0-20 Hz in tri-axial directions has been calculated. The results obtained in this study are helpful in designing seats and other automobile parts where vibration plays a vital role. The FEM (Finite Element Model) has been used to calculate the stresses induced in different parts of human body under vibration conditions and validated with the literature results. It was found that maximum stress is produced at the joint of head and neck and then, at the joint of center torso and lower torso.

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