A Parametric Study of the Modified Model Reference Adaptive Control Scheme

[+] Author and Article Information
H. M. Sardar

TRW Automotive, Steering & Suspension Systems, 34201 Van Dyke Avenue, Sterling Heights, MI 48311-8008

M. Ahmadian

Department of Mechanical Engineering, Virginia Polytechnic Institute & State University, Blacksburg, VA 24061-0238

J. Vib. Acoust 120(3), 814-821 (Jul 01, 1998) (8 pages) doi:10.1115/1.2893902 History: Received August 01, 1996; Revised May 01, 1997; Online February 26, 2008


The validity of the claim by many studies that the damping and stiffness forces can be ignored when designing a model reference adaptive controller, is examined. For a simple plant, the sensitivity of the closed loop system to the inertial, damping, and stiffness nonlinearities are investigated, through a simulation analysis. It is shown that the closed loop system is sensitive to the changes in the inertial nonlinearities, and relatively insensitive to variations in the damping and stiffness forces. This supports the assumption made in many previous studies.

Copyright © 1998 by The American Society of Mechanical Engineers
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