Robustness of Natural Controls of Distributed-Parameter Systems

[+] Author and Article Information
Jai Hyuk Hwang, Doo Man Kim

Department of Aeronautical Engineering, Hankuk Aviation University 200-1 Hwajon-dong, Koyang-si Kyonggi-do, Korea, 411-791

Kyoung Ho Lim

Department of Mechanical Engineering and Design, Hankuk Aviation University 200-1 Hwajon-dong, Koyang-si Kyonggi-do, Korea, 411-791

J. Vib. Acoust 118(1), 56-63 (Jan 01, 1996) (8 pages) doi:10.1115/1.2889635 History: Received September 01, 1993; Online February 26, 2008


In this paper, the effect of parameter and spatial discretization errors on the closed-loop behavior of distributed-parameter systems is analyzed for natural controls. If the control force designed on the basis of the postulated system with the parameter and discretization errors is applied to control the actual system, the closed-loop performance of the actual system will be degraded depending on the degree of the errors. The extent of deviation of the closed-loop performance from the expected one is derived and evaluated using operator techniques. It has been found that the extent of the deviation is proportional to the magnitude of the parameter and discretization errors, and that the proportional coeffecient depends on the structures of the natural controls.

Copyright © 1996 by The American Society of Mechanical Engineers
Topics: Force , Errors , Robustness
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