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

한국트라이볼로지학회 (Korean Tribology Society)
권호 표지

대형 틸팅패드 저어널 베어링의 비선형 지진응답 해석

Nonlinear Analysis of Seismic Responses of Large Tilting fad Journal Bearings

  • 김성기 (한국과학기술원 기계공학과) ;
  • 김경웅 (한국과학기술원 기계공학과)
  • 발행 : 2003.11.01
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초록

In this paper, seismic responses of large tilting pad journal bearings which have $3\~5$ tilting pads were numerically analyzed. The turbulent lubrication equation, the energy equation and motion equation were solved at each time step. The regime of operation of this bearing is laminar, turbulent and transitional. Also viscosity of working fluid was considered as function of only temperature and inlet pressure build-up was considered. Numerical results for a large tilting pad journal bearing showed journal center, maximum temperature, maximum pressure, friction torque. The relationship of bearing response and seismic intensity are discussed.

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