Analysis of the Nonstationary Response of Vehicles With Multiple Wheels

[+] Author and Article Information
R. F. Harrison

Department of Engineering Science, Oxford University, Oxford, England

J. K. Hammond

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

J. Dyn. Sys., Meas., Control 108(1), 69-73 (Mar 01, 1986) (5 pages) doi:10.1115/1.3143745 History: Received November 22, 1985; Online July 21, 2009


Vehicles moving on rough surfaces are subject to inputs which are often conveniently regarded as random processes. In general, the excitation process is “perceived” by the vehicle as a nonstationary random process either due to inhomogeneity in the ground profile or variations in the vehicle’s velocity, or both, Hitherto this second case has not been tractable analytically due to the time variable delay between inputs. In this paper this difficulty is overcome and expressions are derived for the propagation of the mean vector and zero-lag autocovariance matrix. An example of a vehicle modelled by a bicycle configuration is discussed.

Copyright © 1986 by ASME
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