Title :
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.
fDate :
1/1/2007 12:00:00 AM
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;
Journal_Title :
Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on
DOI :
10.1109/TUFFC.2007.224
