Proceedings of the Korean Society for Noise and Vibration Engineering Conference (한국소음진동공학회:학술대회논문집)

  • 2000.11a
  • /
  • Pages.217-224
  • /
  • 2000
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Dynamic Characteristics and Control of HDD Slider Integrated with SMA Actuator

SMA작동기와 연계된 HDD슬라이더의 동특성 및 제어

  • 임수철 (인하대학교 기계공학과 대학원) ;
  • 박종성 (인하대학교 기계공학과 대학원) ;
  • 박철진 (인하대학교 기계공학과 대학원) ;
  • 최승복 (인하대학교 기계공학과) ;
  • 박영필 (인하대학교 기계공학과)
  • Published : 2000.11.16
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Abstract

This paper proposes a new type of HDD suspension integrated with shape memory alloy(SMA) actuator in order to prevent the friction between the slider and the disk. A finite element analysis is undertaken to investigate modal characteristics of the proposed self loading/unloading slider. The dynamic model is formulated and its validity is proved by comparing the predicted displacement transmissibility with the measured one. A control model is then established by integrating experimentally-obtained SMA actuator dynamics. Subsequently, a sliding mode controller is designed to achieve non-contact start/stop(Non CSS) modes, and control results are presented in time domain.

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