International Journal of Vehicle Structures and Systems

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Effect of Low-Frequency Vibration on Human Body in Standing Position Exposed to Railway Vehicle


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1 Dept.of Mech. and Industrial Engg., Indian Institute of Technology Roorkee, Uttarakhand, India
 

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In this paper, the dynamic characteristics of the human body were investigated by developing a 3-D finite element model based on 50th percentile anthropometric data for a 54 kg Indian male subject in standing position by considering human body segments as an ellipsoid. The finite element modal analysis is carried out to extract several low-frequency vibration modes and its vibration mode shapes were presented in this paper. The results show that the lowest natural frequency of the standing passenger model occurs in the fore-and-aft direction. The second natural frequency occurs in the lateral direction and the first order natural frequency of the standing passenger model in the vertical direction occurs at 5.379 Hz. The model will be helpful to predict the vibration response of human body under various vibration environment encounters in the railway vehicle.

Keywords

Railway vehicle, Modal Analysis, Human Vibration, Standing Position, Finite Element Method.
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PDF Views: 140




  • Effect of Low-Frequency Vibration on Human Body in Standing Position Exposed to Railway Vehicle

Abstract Views: 319  |  PDF Views: 140

Authors

Rajesh Govindan
Dept.of Mech. and Industrial Engg., Indian Institute of Technology Roorkee, Uttarakhand, India
Suraj Prakash Harsha
Dept.of Mech. and Industrial Engg., Indian Institute of Technology Roorkee, Uttarakhand, India

Abstract


In this paper, the dynamic characteristics of the human body were investigated by developing a 3-D finite element model based on 50th percentile anthropometric data for a 54 kg Indian male subject in standing position by considering human body segments as an ellipsoid. The finite element modal analysis is carried out to extract several low-frequency vibration modes and its vibration mode shapes were presented in this paper. The results show that the lowest natural frequency of the standing passenger model occurs in the fore-and-aft direction. The second natural frequency occurs in the lateral direction and the first order natural frequency of the standing passenger model in the vertical direction occurs at 5.379 Hz. The model will be helpful to predict the vibration response of human body under various vibration environment encounters in the railway vehicle.

Keywords


Railway vehicle, Modal Analysis, Human Vibration, Standing Position, Finite Element Method.

References





DOI: https://doi.org/10.4273/ijvss.10.3.01