Thickness-shear and thickness-twist modes in an oblate elliptical ceramic cylinder and energy trapping in contoured acoustic wave resonators

  • Hui Jing He
  • , Jia Shi Yang
  • , Yi Hua Huang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We study shear-horizontal motions of a piezoelectric ceramic cylinder with an oblate elliptical cross section and axial poling. Exact thickness-shear and thickness-twist vibration modes are obtained. These modes show energy trapping, i.e., the vibration is mainly confined near the thick, central region and decays to almost nothing near the edges. The results are useful for the understanding and design of contoured piezoelectric resonators for strong energy trapping.

Original languageEnglish (US)
Title of host publicationProceedings of the 2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012
Pages365-368
Number of pages4
DOIs
StatePublished - 2012
Externally publishedYes
Event2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012 - Shanghai, China
Duration: Nov 23 2012Nov 25 2012

Publication series

NameProceedings of the 2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012

Conference

Conference2012 Symposium on Piezoelectricity, Acoustic Waves and Device Applications, SPAWDA 2012
Country/TerritoryChina
CityShanghai
Period11/23/1211/25/12

Keywords

  • Elliptic
  • Energy trapping
  • Resonator

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