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

  • 2001.05a
  • /
  • Pages.735-743
  • /
  • 2001
  • /
  • 1598-2548(pISSN)
The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Critical Speeds Evaluation of Turbo Pump Unit with a Elastic-ring Inserted Ball Bearing

탄성 링을 갖는 볼 베어링 지지의 터보 펌프 임계 속도에 관한 연구

  • 이용복 (한국과학기술연구원 트라이볼로지 연구센터) ;
  • 김창호 (한국과학기술연구원 트라이볼로지 연구센) ;
  • 곽현덕 (한국과학기술연구원 트라이볼로지 연구센) ;
  • 하태웅 (경원대학교 기계공학) ;
  • 우유철 ((주)현대모비스)
  • Published : 2001.05.01
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Abstract

This study was performed to evaluate the dynamic behavior of turbo pump unit. The acceptable separate margin of 1st critical speed was obtained by the use of elastic-ring inserted ball bearing, while the poor separate margin of 1$\^$st/ critical speed was appeared in the case without the elastic-ring. In addition, the results show that the stiffness and damping of plain seals gain more separate margin of 2nd critical speed. However the wear or the failure of seals could reduce the 2$\^$nd/ critical speeds near the operating speed.

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