Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/37604
Title: Modeling piezoelectric tube scanner with hysteresis and creep by finite element method
Authors: Chung, SH
Fung, EHK
Keywords: Creep
Finite element methods
Modeling
Issue Date: 2009
Source: Proceedings of the ASME 2009 International Mechanical Engineering Congress and Exposition, Lake Buena Vista, Florida, USA, November 13–19, 2009, v. 1, paper no. IMECE2009-10139, p. 377-384 (CD-ROM) How to cite?
Abstract: An accurate finite element (FE) model of piezoelectric tube actuator with nonlinearities is proposed in this paper. Both of the hysteresis and the creep are the first to be implemented together into the model in order that the simulation is more precise to account for the dynamic behavior of the piezoelectric tube actuator in the reality. Prandtl-Ishlinskii (PI) operators and creep operators are adopted to formulate the nonlinear constitutive equations. As a result, nonlinear ordinary differential equations can be derived through the energy approach and Hamilton’s Principle. It is observed that the simulation results exhibit nonlinearly with either step or triangular input. They, moreover, agree quite well with the experimental results. The effect on the output response due to the different dimensions of electrode is also investigated. Finally, a proportional controller is implemented to reveal the controllability of this nonlinear FE model. Simulation results also demonstrate that the nonlinear FE model can be used for controller design.
URI: http://hdl.handle.net/10397/37604
ISBN: 978-0-7918-4383-3
978-0-7918-3863-1 (E-ISBN)
DOI: 10.1115/IMECE2009-10139
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