Dynamic bending and domain wall motion in piezoelectric laminated actuators under ac electric fields

Yasuhide Shindo, F. Narita, M. Mikami, K. Hayashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We investigate the nonlinear electromechanical response of piezoelectric laminated actuators under alternating current (ac) electric fields both analytically and experimentally. A laminated beam theory solution is developed for the cantilever piezoelectric/metal/piezoelectric actuator, and the effects of ac electric fields on the deflection are analyzed. A simple phenomenological model of a vibrating domain wall in electric fields is used, and the macroscopic actuator response is predicted. A nonlinear three-dimensional finite element model is also developed. Bending tests are used to validate the predictions using bimorph-type bending actuators made with soft lead zirconate titanate (PZT) layers and a metal sheet. Theoretical predictions of the dynamic bending behavior are in excellent agreement with measured values.

Original languageEnglish
Title of host publication3rd M.I.T. Conference on Computational Fluid and Solid Mechanics
Pages488-491
Number of pages4
Publication statusPublished - 2005 Dec 1
Event3rd M.I.T. Conference on Computational Fluid and Solid Mechanics - Boston, MA, United States
Duration: 2005 Jun 142005 Jun 17

Publication series

Name3rd M.I.T. Conference on Computational Fluid and Solid Mechanics

Other

Other3rd M.I.T. Conference on Computational Fluid and Solid Mechanics
CountryUnited States
CityBoston, MA
Period05/6/1405/6/17

Keywords

  • Beam
  • Domain wall motion
  • Dynamic bending
  • Elasticity
  • Finite element method
  • Material testing
  • Piezocomposite
  • Smart materials

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Computational Mathematics

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