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On-line control of a flexible beam using adaptive fuzzy controller and piezoelectric actuators

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Author(s): Abreu Gustavo Luiz C. M. de | Ribeiro José F.

Journal: Sba: Controle & Automação Sociedade Brasileira de Automatica
ISSN 0103-1759

Volume: 14;
Issue: 4;
Start page: 377;
Date: 2003;
Original page

Keywords: Adaptive Fuzzy Controllers | Lyapunov's Stability Theory | Flexible Structures and Piezoelectric Actuators

ABSTRACT
This paper presents a design of adaptive fuzzy controllers applied to the control of vibrations in flexible structures containing distributed piezoelectric actuator patches. The adaptive fuzzy controller is constructed from a set of fuzzy IF-THEN rules whose parameters are adjusted on-line according to some adaptation law. The adaptive law is derived based on the Lyapunov's stability theory. This control methodology is experimentally verified in a steel cantilever test beam and a set of experimental tests are made in the system to verify the efficiency of the adaptive fuzzy controller proposed.
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