광 픽업 지지부 초기설계를 위한 외팔보 구조 진동해석

Vibration analysis of a cantilever beam for initial design of optical pickups

  • 김윤영 (서울대학교, 기계설계학과) ;
  • 이호철 (서울대학교 대학원, 기계구조연구실)
  • 발행 : 1996.12.01

초록

This paper proposes a method to determine the initial shape and size of the suspension beam of an optical pickup actuator subjected to specified dynamic characteristics. For the analysis, a simplified model consisting of a concentrated mass, rotational springs and beams is developed. Based on this model, the key dimensionless design parameters are introduced, which govern low-frequency vibration characteristics i. e., the resonant frequencies in the tracking and focusing directions. A systematic procedure for sizing and shaping the actuator suspension beams is described and applied to a sample case. The effectiveness of the present technique is verified through the comparison of the present and the finite element results.

키워드

참고문헌

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