RESEARCH ON EFFECTIVE ELECTRO-MECHANICAL COUPLE FATOR OF SANDWICH TYPE PIEZOELECTRIC TRANSDUCER USING BENDING VIBRATION MODE

Shi Shengjun; Zhang Qiang

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RESEARCH ON EFFECTIVE ELECTRO-MECHANICAL COUPLE FATOR OF SANDWICH TYPE PIEZOELECTRIC TRANSDUCER USING BENDING VIBRATION MODE

Shi Shengjun 1 *,Zhang Qiang 2 #

1.State Key Laboratory of Advanced Robot and System,University of Harbin Institute of Technology, Harbin 150001

2.State Key Laboratory of Advanced Robot and System, University of Harbin Institute of Technology

*Correspondence author

#Submitted by

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Funding: none

Opened online:15 March 2013

Accepted by: none

Citation: Shi Shengjun,Zhang Qiang.RESEARCH ON EFFECTIVE ELECTRO-MECHANICAL COUPLE FATOR OF SANDWICH TYPE PIEZOELECTRIC TRANSDUCER USING BENDING VIBRATION MODE[OL]. [15 March 2013] http://en.paper.edu.cn/en_releasepaper/content/4526863

In this paper, an analytical model of sandwich type piezoelectric transducer using bending vibration mode is presented. The piezoelectric transducer is simplified as a constant cross section composite beam with free-free boundary condition. The Timoshenko beam theory is involved in the analytical modelling of piezoelectric transducer, and structure parameters sensitivity of bending resonant frequency are obtained. The analytical model is validated by comparing against the result of finite element method. The first three order resonant frequencies and vibration curves of bending mode are obtained. The analytical model provides a theoretical basis for designing and optimization of the sandwich type piezoelectric transducer using bending vibration mode.

Keywords:Analytical modeling; Sandwich type; Bending vibration; Piezoelectric transducer; Timoshenko beam theory

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