대한기계학회:학술대회논문집 (Proceedings of the KSME Conference)

대한기계학회 (The Korean Society of Mechanical Engineers)
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광 디스크 드라이브 내부 유동장에 관한 실험적 연구

An Experimental Study of Flow Fields in an Optical Disc Drive

  • 정지원 (연세대학교 대학원 기계공학과) ;
  • 조형희 (연세대학교 기계공학과) ;
  • 최명렬 (삼성전자 OMS 사업부 개발팀) ;
  • 성평용 (삼성전자 OMS 사업부 개발팀) ;
  • 이경호 (삼성전자 OMS 사업부 개발팀)
  • 발행 : 2004.04.28
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초록

The present study investigates flow characteristics in an optical disc drive. Detailed knowledge of the flow characteristics is essential to analyze flow-induced noise and vibration, forced convection and flow friction loss. The ODD used in the personal computer is used for the experiment and rotating velocity of disc is under the 4500 rpm. Time-resolved velocity components and velocity spectrum are obtained using the laser Doppler anemometry (LDA). The results show that the front holes reduce now-induced noise and the position of pickup body affects flow near the window. In addition, il is possible for cooling of heat sources in an optical disc drive through measuring the flow fields under the tray.

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