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Proceedings Paper

Independent modal-space control and estimation with distributed piezoelectric actuators and sensors
Author(s): Hayrani Oz
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Paper Abstract

Thanks to the recent advances in control of structures by distributed piezoelectric elements, the concept of independent control and sensing of the structural modes has reemerged in the published literature. In particular, to this end, piezoelectric orthogonal actuators and sensors have been introduced. On the other hand, Independent Modal-Space Control (IMSC) of distributed-parameter-system (DPS) is a well-known approach advocated by the author and his associates throughout the past two decades. In the 1980's it has been shown by its proponents that the IMSC method ultimately represents a globally optimal distributed-control and distributed-sensing approach to structural control. Piezoelectric elements are not exception to the general theoretical concepts of distributed-control and sensing of DPS's via the IMSC method. By a constructive theoretical approach, it is shown in this paper that the recent results characterized by the phrases `independent modal control' and `orthogonal actuators and sensors' constitute precise piezoelectric realizations of the IMSC method of the author and his past associates, almost two decades after its introduction.

Paper Details

Date Published: 31 May 1996
PDF: 12 pages
Proc. SPIE 2715, Smart Structures and Materials 1996: Mathematics and Control in Smart Structures, (31 May 1996); doi: 10.1117/12.240799
Show Author Affiliations
Hayrani Oz, The Ohio State Univ. (United States)

Published in SPIE Proceedings Vol. 2715:
Smart Structures and Materials 1996: Mathematics and Control in Smart Structures
Vasundara V. Varadan; Jagdish Chandra, Editor(s)

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