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

Korean Tribology Society (한국트라이볼로지학회)
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Coupled Boundary Effects on a Gas Lubricated Bearing far a Scaled-Up Micro Gas Turbine

  • Hyunduck Kwak (Tribology Research Center, Korea Institute of Science and Technology) ;
  • Lee, Yong-Bok (Tribology Research Center, Korea Institute of Science and Technology) ;
  • Kim, Chang-Ho (Tribology Research Center, Korea Institute of Science and Technology) ;
  • Gunhee Jang (Department of Precision Mechanical Engineering, Hanyang University)
  • Published : 2000.11.01
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Abstract

In case of the limitation of Deep RIE fabrication for Micro Gas Turbine, bearing aspect ratio is limited in very small value. The characteristics such as pressure distribution load capacity and non-linearity of a short bearing of L/D=0.083 and a conventional bearing of L/D=1.0 with coupled boundary effects are investigated far Micro Gas Tlubine bearings. The coupled efffect was analyzed by mass conservation at coupled end area. The results, increasing load capacity and non-linearity due to the coupled effect of thrust and journal bearing, are obtained and the selection of journal bearing type is discussed.

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