Vibration Characteristics of a 1-3 Piezoelectric Composite Arrayed on a Cylindrical Surface

원통면에 배열된 1-3 압전 복합체의 진동 특성

  • 김대승 (숭실대학교 대학원 기계공학과) ;
  • 김진오 (숭실대학교 공과대학 기계공학과)
  • Published : 2007.05.10

Abstract

This paper presents a theoretical approach to describe the vibration characteristics in the 1-3 piezoelectric composite arrayed on a cylindrical surface. By homogenizing the composite composed of a piezoelectric ceramic and a polymer the physically useful parameters were defined and then used to derive the governing equation of radial motion for the cylindrical 1-3 piezoelectric composite. Applying mechanical and electric boundary conditions has yielded a characteristic equation for radial vibration of the composite. Theoretical calculations of the resonance frequency have been compared with those obtained by the finite-element analysis and have shown a good agreement.

Keywords