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Vibration Control of Plates Using Resonant Shunted Piezoelectric Material

공진분기회로를 이용한 평판의 진동제어

  • 김영호 (포항공과대학교 대학원 기계공학과) ;
  • 박철휴 (포항공과대학교 기계공학과) ;
  • 박현철 (포항공과대학교 기계공학과)
  • Published : 2003.10.01

Abstract

Vibration control of plates with a passive electrical damper is presented in this paper. This electrical absorber, piezoelectric patches connected with a resistor and an inductor in series, is analogous to the damped mechanical vibration absorber. For estimating the effectiveness of piezoelectric absorber, the governing equations of motion are derived using a classical laminate plate theory and Hamilton principle. The developed theoretical analysis is validated experimentally for a simply-supported aluminum plate in order to demonstrate the performance of passive electrical damper. The result shows that the vibration amplitude is reduced about 14dB for the targeted first vibration mode.

Keywords

Resonant Shunt Circuit;Passive Vibration Control;Electrical Absorber;Piezoelectric Material

References

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