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Proceedings Paper

An autonomous piezoelectric shunt damping system
Author(s): Andrew J. Fleming; Sam Behrens; S. O. Reza Moheimani
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Paper Abstract

Passive shunt damping involves the connection of an electrical shunt network to a structurally attached piezoelectric transducer. In recent years, a large body of research has focused on the design and implementation of shunt circuits capable of significantly reducing structural vibration. This paper introduces an efficient, light weight, and small-in-size technique for implementing piezoelectric shunt damping circuits. A MOSFET half bridge is used together with a signal processor to synthesize the terminal impedance of a piezoelectric shunt damping circuit. Along with experimental results demonstrating the effectiveness of switched-mode shunt implementation, we discuss the design of a device aimed at bridging the gap between research in this area and practical application.

Paper Details

Date Published: 31 July 2003
PDF: 10 pages
Proc. SPIE 5052, Smart Structures and Materials 2003: Damping and Isolation, (31 July 2003); doi: 10.1117/12.483970
Show Author Affiliations
Andrew J. Fleming, Univ. of Newcastle (Australia)
Sam Behrens, Univ. of Newcastle (Australia)
S. O. Reza Moheimani, Univ. of Newcastle (Australia)

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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