Nonlinear bending characteristics and sound pressure level of functionally graded piezoelectric actuators under AC electric fields: Simulation and experiment

Yasuhide Shindo, Fumio Narita, Jun Nakagawa

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

This paper describes the results of our numerical and experimental studies of the nonlinear electromechanical response in functionally graded piezoelectric actuators under alternating current (AC) electric fields. A nonlinear finite-element method is employed to simulate the dynamic bending of clamped-clamped functionally graded piezoelectric bimorphs. A phenomenological model of domain wall motion is used in the computation, and the effects of AC electric field amplitude and frequency, number of layers and property gradation on the sound pressure level, deflection and internal stresses of the actuators are examined. The sound pressure level is also measured to validate the numerical predictions, and comparison is made between numerical results and experimental data.

Original languageEnglish
Pages (from-to)2296-2301
Number of pages6
JournalSmart Materials and Structures
Volume16
Issue number6
DOIs
Publication statusPublished - 2007 Dec 1

ASJC Scopus subject areas

  • Signal Processing
  • Civil and Structural Engineering
  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Electrical and Electronic Engineering

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