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Proceedings Paper

Distributed electric absorbers of beam vibrations
Author(s): Francesco dell'lsola; Dionisio Del Vescovo; Corrado Maurini
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Paper Abstract

Several electric vibration absorbers based on distributed piezoelectric control of beam vibrations are studied. The damping devices are conceived by interconnecting with different modular electric networks an array of piezoelectric transducers uniformly distributed on a beam. Five different vibration absorbers made of five different network interconnecting topologies are considered and their damping performances are analyzed and compared. The analysis is based on homogenized models of modular piezo-electromechanical systems. The optimal parameters of these absorbers are found by adopting the criterion of critical damping of waves with a single wave number. We show that: i) there is an interconnecting network providing an optimal multimodal damping; ii) the performances required to the electr(on)ic components can be significantly decreased by increasing the number (and decreasing the dimensions) of the piezoelectric transducers.

Paper Details

Date Published: 31 July 2003
PDF: 12 pages
Proc. SPIE 5052, Smart Structures and Materials 2003: Damping and Isolation, (31 July 2003); doi: 10.1117/12.483956
Show Author Affiliations
Francesco dell'lsola, Univ. degli Studi di Roma La Sapienza (Italy)
Dionisio Del Vescovo, Univ. degli Studi di Roma La Sapienza (Italy)
Corrado Maurini, Univ. degli Studi di Roma La Sapienza (Italy)
Univ. Versailles/S. Quentin-en-Yvelines (France)


Published in SPIE Proceedings Vol. 5052:
Smart Structures and Materials 2003: Damping and Isolation
Gregory S. Agnes; Kon-Well Wang, Editor(s)

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