Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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The Geometrical Analysis of the Response and the Stiffness Matrix of a Wire Type Actuator in the Optical Disc Drive

와이어 지지형 광픽업 액츄에이터의 강성행렬과 기하학적 응답해석

  • 단병주 (연세대학교 대학원 기계공학과) ;
  • 최용제 (연세대학교 공가대학 기계전자공학부)
  • Published : 1999.10.01
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Abstract

This paper presents the geometrical methodology to decouple the vibration modes of an elastically supported single rigid body in three-dimensional space. It is shown that the vibration modes can be decoupled by placing the center of elasticity at suitable locations and thereby yielding the plane(s) of symmetry for the given stiffness matrix. The developed methodology has been applied to the actuator supported by the 4-wire suspensions in optical discs, which has one plane of symmetry. For this numerical example, the axes of vibrations have been computed and illustrated with the natural frequencies. The forced response at the objective lens is represented and its geometrical interpretation has been explained as the mutual moment between the axis of vibration and the applied wrench times the line coordinates of the axis of vibration.

Keywords

References

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