Optimal Design of Active Suspensions Using Damping Control

[+] Author and Article Information
Junghsen Lieh

Mechanical and Materials Engineering, Wright State University, Dayton, OH 45435

J. Vib. Acoust 119(4), 609-611 (Oct 01, 1997) (3 pages) doi:10.1115/1.2889769 History: Received February 01, 1994; Revised March 01, 1996; Online February 26, 2008


This paper studies the effect of optimal damping control suspensions on vehicle ride performance. The gain matrix is developed from second-order equations with the road roughness represented by a stochastic process. With only velocities as the feedback signal, the number of unknowns and measurements is reduced leading to more efficiency in data processing. The control is implemented on a quarter-car model which includes the tire damping effect. The spectral density is compared with those for passive and fully active systems.

Copyright © 1997 by The American Society of Mechanical Engineers
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