대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제27권4호
  • /
  • Pages.608-613
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  • 2003
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  • 1226-4873(pISSN)
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  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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저널-스러스트 베어링 사이의 상호 연결 경계가 동압 공기 윤활 베어링의 성능에 미치는 영향

Effect of Interconnected Boundary Between Journal and Thrust Bearings on the Performance of Self-Acting Air-Lubricated Bearings

  • 강지훈 (한국과학기술원 기계공학과) ;
  • 김성기 (한국과학기술원 기계공학과) ;
  • 김경웅 (한국과학기술원 기계공학과)
  • 발행 : 2003.04.01
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초록

In this paper, the effect of interconnected boundary between journal and thrust bearings on the performance of self-acting air-lubricated bearings is investigated. When journal and thrust bearings have common boundary, conventional boundary condition which assumes that the boundary pressure is equal to atmosphere is no more valid. Instead, new boundary condition by mass conservation at interconnected boundary is needed. To do this, a duct model satisfying mass conservation at interconnected boundary is developed. Using this model, pressure distribution at interconnected boundary is numerically analyzed with changing the volume of interconnecting part. As a result, it is shown that load capacity of thrust bearing can be greatly increased when journal and thrust have a common boundary.

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참고문헌

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