Distributed electric absorbers of beam vibrations

Francesco dell'lsola; Dionisio Del Vescovo; Corrado Maurini

doi:10.1117/12.483956

31 July 2003 Distributed electric absorbers of beam vibrations

Francesco dell'lsola, Dionisio Del Vescovo, Corrado Maurini

Proceedings Volume 5052, Smart Structures and Materials 2003: Damping and Isolation; (2003) https://doi.org/10.1117/12.483956
Event: Smart Structures and Materials, 2003, San Diego, California, United States

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.

Citation Download Citation

Francesco dell'lsola, Dionisio Del Vescovo, and Corrado Maurini "Distributed electric absorbers of beam vibrations", Proc. SPIE 5052, Smart Structures and Materials 2003: Damping and Isolation, (31 July 2003); https://doi.org/10.1117/12.483956

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