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Ramp Loading 피코 슬라이더의 거동 해석

Dynamics of a Pico Slider during the Ramp Loading Process

  • 임윤철 (연세대학교 기계공학부) ;
  • 김범준 (연세대학교 대학원 기계공학과) ;
  • 조광표 (연세대학교 대학원 기계공학과)
  • Rhim Yoon-Chul (School of Mechanical Eng. Yonsei University) ;
  • Kim Bum-Joon (Dept. of Mechanical Eng. Graduate School, Yonsei University) ;
  • Cho Kwang-Pyo (Dept. of Mechanical Eng. Graduate School, Yonsei University)
  • 발행 : 2004.12.01

초록

Recently, a load/unload(L/UL) system is adopted to the hard disk drive(HDD) due to its advantages such as lower power consumption, larger data zone, simpler fabrication of disk due to no bumped parking zone, and rarer contact between slider and media. An analysis of the transient motion for the slider is very important to design an air bearing surface(ABS) of the slider to secure the stable performance of the system. During the L/UL process, however, there are several issues occurred such as contact or collision between slider and media. Sometimes this will cause the system failure. In this study, the dynamics of a pico slider during the loading process are investigated through numerical simulation using FEM analysis and experiment. Ramp profile and angular velocity of the swing arm actuator are very important parameters for the design of L/UL system to avoid collision between slider and disk.

키워드

참고문헌

  1. Fukui, S., Kaneko, R., JSME, Paper 86-317A., 1986
  2. Ta-Chung Fu and David B. Bogy, 'Slider VibrationsInduced by Ramp-Suspension Interaction During theRamp Loading Process,' IEEE Trans. On Magnetics,Vol. 30, No. 6, 1994
  3. Qing-Hua Zeng and David B. Bogy, 'Effects of Cer-tain Design Parameters on Load/Unload Perfor-mance,' IEEE Trans. On Magnetics, Vol. 36, No. 1, 2000
  4. V. Ponnaganti and T. R. Kane, 'Dynamics of Head-Disk Contact/Impact in Magnetic Recording,' IEEETrans. On Magnetics, Vol. 23, No. 5, 1987