Title: Biodynamic modelling of seated human body under whole body vibration exposure using ANN

Authors: Aman Kumar; V.H. Saran; S.P. Harsha

Addresses: Mechanical and Industrial Engineering Department, Indian Institute of Technology, Roorkee, 247667, India ' Mechanical and Industrial Engineering Department, Indian Institute of Technology, Roorkee, 247667, India ' Mechanical and Industrial Engineering Department, Indian Institute of Technology, Roorkee, 247667, India

Abstract: Vehicle developers and design engineers require understanding of human response to vibration for optimising the seat in order to meet the objective of passenger ride comfort. This paper attempts to develop an artificial neural networks (ANN) based model to measure biodynamic response seat to head transmissibility (STHT), incorporating factors like vibration frequency, vibration magnitude and posture for seated subjects exposed to random whole body vibration (WBV) in three different directions (vertical, fore-aft, lateral). After training the model is able to predict STHT with high accuracy when compared with the experimental values. Cross-axis coupling, i.e., excitation in one axis producing a response in the other axis, is also validated through ANN modelling in this paper.

Keywords: biodynamic response; artificial neural network; ANN; random WBV; vibration magnitude; vibration direction; posture; seat to head transmissibility; STHT; cross-axis coupling.

DOI: 10.1504/IJVNV.2017.089505

International Journal of Vehicle Noise and Vibration, 2017 Vol.13 No.3/4, pp.187 - 199

Received: 28 Dec 2016
Accepted: 07 Apr 2017
Published online: 29 Jan 2018 *

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