Title: Ride dynamic behaviour of coupled human-vehicle vibratory model

Authors: Srihari Reddy Panta; Ramakrishna Avasarala; Ramji Koona

Addresses: Department of Mechanical Engineering, N.B.K.R.I.S.T, SPSR, Nellore 524413, India ' Department of Mechanical Engineering, Andhra University, Visakhapatnam, Andhra Pradesh 530003, India ' Department of Mechanical Engineering, Andhra University, Visakhapatnam, Andhra Pradesh 530003, India

Abstract: In this paper a 17-degree of freedom (dof) human-seat system is developed using anthropomorphic modelling and the model is coupled with a 7-degree of freedom of a typical small passenger car to study the dynamic response of human driver due to vehicle vibrations. The coupled model is analysed by MATLAB simulation for ride dynamic behaviour of human driver under harmonic input excitation in the frequency range of 0-40 Hz. The ride behaviour in terms of vertical accelerations of different body segments of the human driver is compared for ride comfort using ISO-2631 standard. Further parametric analysis is carried out to improve the ride comfort of the human driver.

Keywords: whole body vibration; lumped-parameter models; full-car model; degree of freedom; dof; ride comfort; coupled human-vehicle modelling; ride dynamics; vehicle vibration; car seats; anthropomorphic modelling; small passenger cars; dynamic response; human drivers; simulation; vertical acceleration; parametric analysis.

DOI: 10.1504/IJHFMS.2014.067176

International Journal of Human Factors Modelling and Simulation, 2014 Vol.4 No.3/4, pp.250 - 265

Received: 08 Nov 2013
Accepted: 09 Jul 2014

Published online: 23 Jan 2015 *

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