Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)

Korean Tribology Society (한국트라이볼로지학회)
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A Study on the Lift-off Characteristics of an Air-lubricated Bump Foil Journal Bearing

공기윤활 범프 저어널 베어링의 부상 특성에 관한 연구

  • 이남수 (한양대학교 대학원 기계설계학과) ;
  • 이용복 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 최동훈 (한양대학교 대학원 기계설계학과) ;
  • 김창호 (한국과학기술연구원 트라이볼로지 연구센터)
  • Published : 2001.06.01
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Abstract

In this paper the effect of bump compliance, load, and the number of pad on the lift-off speed is studied. When the load is greater and bump compliance lower, the shaft is lifted off at higher rotating speed. And when the load is applied near the center of pad, lift-off speed is lower. When the number of pad increases, the lift-off speed is higher. The lift-off characteristics can be used to lengthen the life time of the coating and design the rotating machinery supported by bump bearings.

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