Vibration Reduction of the Optical Disk Drive Using Piezoelectric Shunt

압전 션트회로를 이용한 광 디스크 드라이브의 진동 저감

  • 박종성 (인하대학교 대학원 기계공학과) ;
  • 임수철 (인하대학교 대학원 기계공학) ;
  • 최승복 (인하대학교 기계공학) ;
  • 김재환 (인하대학교 기계공학) ;
  • 박영필 (인하대학교 기계공학부)
  • Published : 2001.11.01

Abstract

This paper presents a piezoelectric shunt methodology to reduce unwanted vibration of optical disk drive(O.D.D.). After briefly investigating a second-order mechanical vibration absorber model, the O.D.D. structure is incorporated with the piezoelectric shunt circuit. In order to identify modal parameter of the structure, a finite element analysis is undertaken. The parameters are optimally tuned on the basis of the circuit model. The displacement transmissibility is evaluated and compared with various resistance values.

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