Strong nonlinear behavior of piezoceramics excited with a weak electric field

Wolfgang Seemann; Rainer Gausmann

doi:10.1117/12.432749

11 July 2001 Strong nonlinear behavior of piezoceramics excited with a weak electric field

Wolfgang Seemann, Rainer Gausmann

Proceedings Volume 4333, Smart Structures and Materials 2001: Active Materials: Behavior and Mechanics; (2001) https://doi.org/10.1117/12.432749
Event: SPIE's 8th Annual International Symposium on Smart Structures and Materials, 2001, Newport Beach, CA, United States

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.

Citation Download Citation

Wolfgang Seemann and Rainer Gausmann "Strong nonlinear behavior of piezoceramics excited with a weak electric field", Proc. SPIE 4333, Smart Structures and Materials 2001: Active Materials: Behavior and Mechanics, (11 July 2001); https://doi.org/10.1117/12.432749

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