Title: Discrete mass tyre model for ride investigation over uneven rigid terrain

Authors: Corina Sandu; Anake Umsrithong

Addresses: Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA ' Department of Mechanical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24061, USA

Abstract: The goal of this study is to develop a tyre model able to capture the vertical tyre dynamic behaviour while traversing over an uneven rigid surface. The proposed tyre model takes advantage of modelling the wheel-tyre assembly as a multi body dynamic system in order to investigate the tyre ride behaviour over such terrain. Several experiments are conducted for the tyre model parameter identification and the tyre model validation with an indoor quarter car tyre test rig and an outdoor portable tyre trailer test rig. The selected scenarios are simulated by using the discrete mass tyre model with the tyre parameters obtained from the experiments. The simulation results of the selected scenarios are presented and compared with the experimental data.

Keywords: discrete mass; tyre modelling; uneven terrain; rigid terrain; ride dynamics; vehicle dynamics; vehicle tyres; vertical tyre dynamics; multibody dynamics; parameter identification; model validation; quarter car models; simulation.

DOI: 10.1504/IJVD.2014.064374

International Journal of Vehicle Design, 2014 Vol.66 No.1, pp.87 - 106

Received: 08 Apr 2013
Accepted: 15 Jun 2013

Published online: 30 Oct 2014 *

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