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Finite element and modal modeling of a cantilever beam with piezoelectric patch actuator for vibration absorption

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2 Author(s)
Rios-Gutierrez, M. ; Depto. de Ing. Electr.-Seccion de Mecatronica, CINVESTAV-IPN, Mexico City, Mexico ; Silva-Navarro, G.

This paper is about mechanical vibration absorption in a cantilever beam. This is accomplished by an active control scheme. The experimental set up consists of an aluminum cantilever beam clamped to an electrodynamical shaker. In that the main actuator is a piezoelectric patch and the feedback signal is obtained with a small piezoelectric accelerometer. For control purposes the closed loop is done via a positive feedback controller. In this work the beam is modeled with a four element finite model. The piezoelectric patch model is also presented. Experimental validation of the beam model is presented. And some results in closed loop are shown in numerical simulation as well as in the experimental platform.

Published in:

Electrical Engineering, Computing Science and Automatic Control,CCE,2009 6th International Conference on

Date of Conference:

10-13 Jan. 2009