Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Vibration Reduction of an Optical Disk Drive with a Dynamic Vibration Absorber

동흡진기를 사용한 광 디스크 드라이브의 진동저감

  • 김남웅 (서울대학교 대학원 기계항공공학부) ;
  • 신효철 (서울대학교 기계항공공학부) ;
  • 김국원 (순천향대학교 기계공학과)
  • Published : 2006.05.01
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Abstract

In high-speed optical disk drive, the excitation caused by rotation of a mass-unbalanced disk is a major source of vibration. The vibration can be a disturbance to the servo system, which is sufficient to cause severe failures in the reading and writing process. The vibration also causes users to feel unpleasantness. The vibration reduction is therefore essential for the reliable operation of optical disk drive. One of the approaches to reduce the vibration is a dynamic vibration absorber(DVA). In this paper, we analyze the dynamic behavior of $DVD{\pm}RW$ combo drive system with DVA through 12-dof rigid multi-body dynamic model. The effective location and the optimal frequency ratio for the DVA are obtained from the analysis. The DVA are fabricated based on the analysis and its usefulness is confirmed.

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References

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