Simulation and Field Testing of Tracked Vehicle Suspension Dynamics

[+] Author and Article Information
S. Sankar, A. Dhir

CONCAVE Research Centre, Department of Mechanical Engineering, Concordia University, 1455 de Maisonneuve Blvd. West, Montreal, Quebec, Canada, H3G 1M8

V. S. Shankhla

Defence Technologies Division, Defence Research Establishment Suffield, Ralston, Alberta, Canada, T0J 2N0

J. Dyn. Sys., Meas., Control 116(4), 764-773 (Dec 01, 1994) (10 pages) doi:10.1115/1.2899276 History: Received October 15, 1991; Revised August 01, 1992; Online March 17, 2008


A nonlinear, in-plane ride dynamic simulation model of a typical off-road tracked vehicle is developed assuming constant forward vehicle speed and nondeformable terrain surface. The ride model includes nonlinear suspension characteristics, wheel/track-terrain interactions, and dynamic track loads. An equivalent damper and continuous radial spring formulation is employed to model wheel/track-terrain interactions, whereas dynamic track loads are modeled in view of track belt stretching and initial track tension. Typical simulation results are presented for a conventional armoured personnel carrier traversing discrete half round obstacles, and a random course, and are validated against field measurements. The predicted ride responses exhibit generally good agreement with field test data.

Copyright © 1994 by The American Society of Mechanical Engineers
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