Optimization of Linear Vehicle Suspensions Subjected to Simultaneous Guideway and External Force Disturbances

[+] Author and Article Information
J. W. Young

Department of Mechanical Engineering, University of California, Davis, Calif.

D. N. Wormley

Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Mass.

J. Dyn. Sys., Meas., Control 95(2), 213-219 (Jun 01, 1973) (7 pages) doi:10.1115/1.3426683 History: Received March 16, 1973; Online July 13, 2010


The optimum linear suspension for a vehicle traveling over a guideway with random irregularities and subjected to random external force disturbances is derived. The optimization is based upon a performance index which weights mean square vehicle acceleration (a measure of passenger comfort) and mean square relative displacement between the vehicle and guideway (a measure of required suspension dynamic excursion). The form of the optimum suspension is not restricted to a specific mechanical, magnetic or fluid suspension configuration. Performance curves and numerical design examples are presented to illustrate the influence of both guideway and external force disturbances upon optimum suspension performance capability.

Copyright © 1973 by ASME
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