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Proceedings Paper

Strong nonlinear behavior of piezoceramics excited with a weak electric field
Author(s): Wolfgang Seemann; Rainer Gausmann
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Paper Abstract

In piezoceramic actuators normally a linear behavior is observed if the excitation is done by a weak electric field. In this paper, however, it is shown that if the system is excited near resonance even for a weak electric field strong nonlinearities may occur. As an example a piezoceramic transformer is investigated. The transformer is simulated using linear constitutive equations. For a very low excitation voltage the simulated results agree well with experimental results. For a moderate excitation voltage the experiments show that linear theory cannot describe all results and nonlinear constitutive equations have to be used.

Paper Details

Date Published: 11 July 2001
PDF: 10 pages
Proc. SPIE 4333, Smart Structures and Materials 2001: Active Materials: Behavior and Mechanics, (11 July 2001); doi: 10.1117/12.432749
Show Author Affiliations
Wolfgang Seemann, Univ. Kaiserslautern (Germany)
Rainer Gausmann, Univ. Kaiserslautern (Germany)

Published in SPIE Proceedings Vol. 4333:
Smart Structures and Materials 2001: Active Materials: Behavior and Mechanics
Christopher S. Lynch, Editor(s)

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