RESEARCH PAPERS: Vibration and Sound

Practical Implementation Issues for Active Control of Large Flexible Structures

[+] Author and Article Information
D. C. Zimmerman

Department of Aerospace Engineering, Mechanics, and Engineering Science, University of Florida, Gainesville, Florida 32611

H. H. Cudney

Department of Mechanical and Aerospace Engineering, State University of New York at Buffalo, Buffalo, New York 14260

J. Vib., Acoust., Stress, and Reliab 111(3), 283-289 (Jul 01, 1989) (7 pages) doi:10.1115/1.3269854 History: Received January 08, 1988; Revised June 08, 1988; Online November 23, 2009


Most active control strategies, whether designed in the discrete or continuous domain, will most likely be implemented using a digital control system. Therefore, it is important to study the effects of digital implementation on the desired control law. In this work, the effect of quantization due to the finite wordlength of microprocessors, analog-to-digital, and digital-to-analog converters, on the desired control law is investigated. Additionally, the practical effect of actuator dynamics on the stability and performance of the control law is addressed. Finally, an active control experiment is reported on which takes into account and demonstrates some of these practical considerations.

Copyright © 1989 by ASME
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