ROBUST H∞VIBRATION CONTROL FOR FLEXIBLE LINKAGE MECHANISM SYSTEMS WITH PIEZOELECTRIC SENSORS AND ACTUATORS

It is well known that the unmodelled dynamics may deteriorate the efficiency of a controller if the controller is not robust enough. This paper presents a robust H∞vibration control method for high-speed flexible linkage mechanism systems with piezoelectric actuators and sensors. The robust H∞contro...

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Bibliographic Details
Published in:Journal of sound and vibration 2001-05, Vol.243 (1), p.145-155
Main Authors: ZHANG, X., SHAO, C., LI, S., XU, D., ERDMAN, A.G.
Format: Article
Language:English
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Summary:It is well known that the unmodelled dynamics may deteriorate the efficiency of a controller if the controller is not robust enough. This paper presents a robust H∞vibration control method for high-speed flexible linkage mechanism systems with piezoelectric actuators and sensors. The robust H∞controller is designed based on the complex mode and the H∞control theory. The numerical simulation shows that the vibration can be significantly suppressed with permitted actuator voltages by the controller. The robustH∞ controller can avoid the spillover due to mode truncation to compare with some other method.
ISSN:0022-460X
1095-8568
DOI:10.1006/jsvi.2000.3413