Study on the vibration characteristics of a finite-width corrugated cylindrical shell piezoelectric transducer

Author

Xu, Limei ; Du, Hualong ; Hu, Hongping ; Shan, Xingye ; Chen, Han ; Hu, Yuantai ; Chen, Xuedong

Author_Institution

Inst. of Astronaut. & Aeronaut., Univ. of Electron. Sci. & Technol., Chengdu, China

Volume

57

Issue

6

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

1460

Lastpage

1469

Abstract

Coupled extensional and flexural vibrations of an ultrasonic piezoelectric transducer are studied in the paper. The ultrasonic piezoelectric transducer is made of piezoelectric polymer PVDF films and modeled as a corrugated cylindrical shell with a finite width in the ridge direction, which consists of multiple pieces of circular cylindrical surfaces smoothly connected along their ridges. The classical shell theory is used to obtain the theoretical solution. Effects of the edge constraints on vibrational characteristics of the resonant frequencies, mode shapes, and internal forces are investigated for a corrugated ultrasonic piezoelectric transducer consisting of a few circular pieces each with a thickness of about 40 mm, radius of 5 mm, and span angle of 120°.

Keywords

piezoelectric materials; piezoelectric thin films; piezoelectric transducers; polymer films; ultrasonic transducers; vibrations; classical shell theory; coupled extensional vibrations; edge constraints; finite-width corrugated cylindrical shell piezoelectric transducer; flexural vibrations; internal forces; piezoelectric polymer PVDF films; resonant frequency; size 40 mum; size 5 mm; span angle; ultrasonic piezoelectric transducer; Corrugated surfaces; Piezoelectric films; Piezoelectric transducers; Polymer films; Resonant frequency; Shape;

fLanguage

English

Journal_Title

Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on

Publisher

ieee

Conference_Location

6/1/2010 12:00:00 AM

ISSN

0885-3010

Type

jour

DOI

10.1109/TUFFC.2010.1565

Filename

5480188