An exact analysis of a rectangular plate piezoelectric generator

Author

Yang, Jiashi ; Chen, Ziguang ; Hu, Yuantai

Author_Institution

Key Lab. for Adv. Mater. & Rheological Properties of Minist. of Educ., Xiangtan Univ.

Volume

54

Issue

1

fYear

2007

fDate

1/1/2007 12:00:00 AM

Firstpage

190

Lastpage

195

Abstract

We study thickness-twist vibration of a finite, piezoelectric plate of polarized ceramics or 6-mm crystals driven by surface mechanical loads. An exact solution from the three-dimensional equations of piezoelectricity is obtained. The plate is properly electroded and connected to a circuit such that an electric output is generated. The structure analyzed represents a piezoelectric generator for converting mechanical energy to electrical energy. Analytical expressions for the output voltage, current, power, efficiency, and power density are given. The basic behaviors of the generator are shown by numerical results

Keywords

ceramics; electric generators; piezoelectric devices; piezoelectricity; vibrations; 6 mm; electric output; electrical energy; mechanical energy; output voltage; piezoelectricity; polarized ceramics; power density; rectangular plate piezoelectric generator; surface mechanical loads; thickness-twist vibration; Ceramics; Circuits; Crystals; Equations; Mechanical energy; Piezoelectric materials; Piezoelectric polarization; Piezoelectricity; Power generation; Vibrations; Computer Simulation; Computer-Aided Design; Electrochemistry; Electronics; Equipment Design; Equipment Failure Analysis; Models, Theoretical; Transducers; Vibration;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2007.224

Filename

4037313