Active control of a thin plate using piezoelectric patches: Preliminary results

Resumo

Due to problems caused by noise and vibration in industrial environment and in human daily life, techniques of active noise and vibration control have received increasing attention lately. More recently, the use of piezoelectric elements in noise and vibration control systems has been investigated. The present paper addresses techniques of active control by employing multiple piezoelectric patches bonded to the surface of thin plate with relatively small dimensions suitable for laboratory tests. A fuzzy control is used in the active control. The paper brings the development of a finite element model of the system and presents some numerical simulations. Experimental implementation is realized aiming at attenuating the vibration modal amplitudes of the plate.