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TECHNICAL PAPERS

Robustness of Adaptive Rotor Vibration Control to Structured Uncertainty

[+] Author and Article Information
C. R. Knospe, S. M. Tamer, S. J. Fedigan

Control Systems Laboratory, Department of Mechanical, Aerospace, and Nuclear Engineering, University of Virginia, Charlottesville, VA, 22903

J. Dyn. Sys., Meas., Control 119(2), 243-250 (Jun 01, 1997) (8 pages) doi:10.1115/1.2801240 History: Received June 01, 1995; Online December 03, 2007

Abstract

Recent experimental results have demonstrated the effectiveness of adaptive open-loop control algorithms for the suppression of unbalance response on rotors supported in active magnetic hearings. Herein, tools for the analysis of stability and performance robustness of this algorithm with respect to structured uncertainty are derived. The stability and performance robustness analysis problems are shown to be readily solved using a novel application of structured singular values. An example problem is presented which demonstrate the efficacy of this approach in obtaining tight bounds on stability margin and worst case performance.

Copyright © 1997 by The American Society of Mechanical Engineers
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