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Proceedings Paper

Embedded distributed piezoelectric actuators for adaptive structures
Author(s): Hossein A. Moini; Changro Yoon; Charles Shih
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Paper Abstract

This article reports on the continued development of an embedded distributed piezoelectric actuator design concept for adaptive structures. The design is motivated by the fact that distributed actuators, as opposed to discrete actuators, will have a major impact on the implementation of modal control of flexible structures. The system under investigation is composed of layers of bimorph piezoelectric actuators, each activating a different mode in the structure. The article encompasses the discussion of theory for a multi-layered structure made of distributed actuators, computer aided modeling and simulations, experimental modal analysis, and correlation analysis. It is shown that the proposed arrangement of actuators removes the limitations associated with actuators' spillover and has the capability of activating desired modes. Furthermore, it is demonstrated that the experimental results for the mode shapes correlated well with those of the computer simulations.

Paper Details

Date Published: 9 June 1999
PDF: 11 pages
Proc. SPIE 3668, Smart Structures and Materials 1999: Smart Structures and Integrated Systems, (9 June 1999); doi: 10.1117/12.350752
Show Author Affiliations
Hossein A. Moini, California State Univ./Fullerton (United States)
Changro Yoon, California State Univ./Fullerton (United States)
Charles Shih, Lockheed Martin Missiles & Space (United States)

Published in SPIE Proceedings Vol. 3668:
Smart Structures and Materials 1999: Smart Structures and Integrated Systems
Norman M. Wereley, Editor(s)

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