• 제목/요약/키워드: Hydro-Static Bearing

검색결과 2건 처리시간 0.019초

딤플이 크랭크 샤프트 핀 터너 유정압 베어링의 윤활특성에 미치는 영향에 관한 연구 (A Study on the Lubrication Characteristics of the Hydro-Static Journal Bearing for a Crank Shaft Pin Turner by Applying Dimple)

  • 서미나;이득우;하양협;이상민;김용우
    • 한국정밀공학회지
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    • 제31권8호
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    • pp.715-720
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    • 2014
  • Recently, surface texturing technologies have been widely used in lots of industries to increase the machinery efficiency. In this research, the lubrication characteristics of a crank shaft pin turner bearing with dimples were studied. When increasing the dimples, the load carrying capacity due to the increased pressure was increased because those have sealing effects. Also, the run-out error of the bearing was decreased. Therefore, it is important to consider the depth, the number and the distribution of dimples when designing the hydrostatic journal bearing.

진원형 정수압 베어링의 해석 (Analysis of Cylindrical Hydrostatic Bearing)

  • 문호지;한동철
    • 한국윤활학회:학술대회논문집
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    • 한국윤활학회 1989년도 제10회 학술강연회초록집
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    • pp.94-99
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    • 1989
  • This paper analyzes file stiffness, damping coefficient, friction force and flow coefficient of externally pressurized oil journal beating, including the effect of journal rotation according to the Sommerfeld number. This paper assumed that the oil in the whole pocket has constant pressure, and that the oil in the whole bearing region has constant viscosity, temperature and density. Reynolds equation is derived from Nuvier - Stokes equation and continuity equation. And solved bearing pressure by ADI method for whole bearing region and fitted with out flow rate of pocket region. The model for numerical simulation is hydro - static oil journal bearing for high-speed, high-accuracy lathe spindle.

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