Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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An Experimental Study on the Structural Dynanmic Coefficients of Self-Acting Compliant Foil Journal Bearings

범프 포일 베어링들의 동적 계수에 관한 실험적 연구

  • 김태호 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 김창호 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 이남수 (한양대학교 대학원 기계설계학과) ;
  • 최동훈 (한양대학교 대학원 기계설계학과) ;
  • 이용복 (한국과학기술연구원 트라이볼로지 연구센터)
  • Published : 2002.02.28
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Abstract

Experiments were conducted to determine the structural dynamic characteristics of bump foil bearing. The housing of the bearing on the journal was driven by two shakers which were used to simulate dynamic forces acting on the bump foil strips. Three different bump foils(Cu-coated bump, silicon bump, viscoelastic bump) are tested and the dynamic coefficients of three bump foils compared, based on the experimental measurements for a wide range of operating conditions. From the test results, the high damping coefficients of viscoelastic bump are achieved and the possibility of the super-bending-critical operation is suggested.

Keywords

References

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