Vibration characteristics of functionally graded piezoelectric cylindrical transducers

Author

Hui-Ming Wang ; Da-sen Luo

Author_Institution

Dept. of Eng. Mech., Zhejiang Univ., Hangzhou, China

fYear

2014

fDate

Oct. 30 2014-Nov. 2 2014

Firstpage

445

Lastpage

448

Abstract

An exact solution is developed for the radial vibration characteristics of functionally graded piezoelectric cylindrical transducers. The material properties, such as mass density, elastic, piezoelectric and dielectric constants, are assumed to be the power-law functions of radial position. The material nonhomogeneity index of mass density can be different from that of elastic, piezoelectric and dielectric constants. General solutions are obtained in terms of Bessel functions. The characteristics equations for the resonant and anti-resonant frequencies are derived by employing the obtained general solutions and the boundary conditions. The illustrative examples show that the vibration characteristics of functionally graded piezoelectric cylindrical transducers can be tuned by adjusting the material nonhomogeneity index.

Keywords

Bessel functions; elasticity; permittivity; piezoelectric transducers; piezoelectricity; vibrations; Bessel functions; dielectric constants; elastic constants; functionally graded piezoelectric cylindrical transducers; mass density; piezoelectric constants; power law functions; radial vibration characteristics; Couplings; Equations; Indexes; Materials; Resonant frequency; Transducers; Vibrations; Cylindrical structure; Functionally graded material; Piezoelectric transducer; Radial vibration;

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves, and Device Applications (SPAWDA), 2014 Symposium on

Conference_Location

Beijing

Print_ISBN

978-1-4799-6424-6

Type

conf

DOI

10.1109/SPAWDA.2014.6998620

Filename

6998620