Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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Radial Vibration Analysis of Cylindrical Piezoelectric Transducers Considering Anisotrpy

이방성을 고려한 원통형 압전 변환기의 반경방향 진동 특성 해석

  • 이정구 (숭실대학교 대학원 기계공학과) ;
  • 김진오 (숭실대학교 공과대학 기계공학과)
  • Published : 2004.03.01
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Abstract

This paper presents the analysis fur the radial vibration characteristics of cylindrical piezoelectric transducers. Taking into account the piezoelectric anisotropy, the differential equations of piezoelectric radial motion have been derived in terms of radial displacement and electric potential. Applying mechanical and electric boundary conditions has yielded a characteristic equation for radial vibration. Numerical analysis also has been carried out by using the finite element method. Theoretical calculations of the fundamental natural frequency have been compared with the experimental observations for transducers of several sizes. Comparison with the previous report of theoretical analysis simplifying the piezoelectric anisotropy into isotropy concludes that isotropic analysis is a reasonable process to predict the vibration characteristics of piezoelectric transducers.

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References

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