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Nonlinear Behavior of Piezoceramic Actuators
Author(s) -
Nguyen Huy The,
von Wagner Utz
Publication year - 2010
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201010122
Subject(s) - hysteresis , nonlinear system , excitation , voltage , amplitude , actuator , jump , electric field , displacement (psychology) , duffing equation , excited state , control theory (sociology) , physics , mechanics , materials science , condensed matter physics , engineering , optics , computer science , electrical engineering , atomic physics , psychology , control (management) , quantum mechanics , artificial intelligence , psychotherapist
Abstract Nonlinear behavior of piezoceramics is a well‐known phenomenon. For large stresses and/or strong electric fields it is described by various hysteresis curves. Quasi‐static experiments exhibited hysteresis relations between excitation voltage and strain as well as between excitation voltage and electric displacement. This behavior can be modeled by using the classical Preisach model. On the other hand, typical nonlinearities of Duffing type such as jump phenomena, multiple stable amplitude responses at the same excitation voltage and frequency, and the presence of superharmonics in response spectra can be observed when piezoceramic actuators are excited near resonance, even at weak electric fields. In this paper, different experimental results for both quasi‐static and dynamic nonlinear behavior and corresponding models are presented and compared. (© 2010 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)