RESEARCH PAPERS: Papers on Transportation

Nonstationary Response of Vehicles on Rough Ground—A State Space Approach

[+] Author and Article Information
J. K. Hammond, R. F. Harrison

Institute of Sound and Vibration Research, University of Southampton, Southampton, England

J. Dyn. Sys., Meas., Control 103(3), 245-250 (Sep 01, 1981) (6 pages) doi:10.1115/1.3140635 History: Received April 01, 1980; Online July 21, 2009


The motion of vehicles traveling over rough ground at variable speed is non-stationary. In this paper, a method for the computation of response variance is presented which uses the concept of a “spatial” shaping filter to represent the uneven ground, leading to a state space form for the combination of vehicle and excitation. The formulation is for linear systems of arbitrary order and allows any deterministic velocity history to be accommodated easily. An example is discussed in detail.

Copyright © 1981 by ASME
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