An Active Suspension System Design for the Lateral Dynamics of a High-Speed Wheel-Rail System

[+] Author and Article Information
G. N. Sarma

Electrical and Electronics Engineering, Birla Institute of Technology and Science, Pilani, India

F. Kozin

Electrical Engineering, Polytechnic Institute of Brooklyn, Brooklyn, N. Y.

J. Dyn. Sys., Meas., Control 93(4), 233-241 (Dec 01, 1971) (9 pages) doi:10.1115/1.3426506 History: Received August 02, 1971; Online July 13, 2010


Railroad cars are known to exhibit instabilities in the lateral dynamics at high speeds. To solve some of the problems of stability, an active suspension system is studied for the high-speed rail vehicle and is compared with the passive system. The vehicle control problem is formulated as an optimization problem with an integral quadratic cost function, and the feedback law thus obtained is further simplified. For the case of the truck dynamics, with external controllers, a Lyapunov function approach is taken for considering state constraints. Stability regions are obtained by analog computer simulation.

Copyright © 1971 by ASME
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