KSTLE International Journal

한국트라이볼로지학회 (Korean Tribology Society)
권호 표지

Characteristics of a Coupled Gas Lubricated Bearing for a Scaled-Up Micro Gas Turbine

  • Lee, Yong Bok (Tribology Research Center, Korea Institute of Science and Technology) ;
  • Kwak, Hyunduck (Department of Precision Mechanical Engineering, Hanyang University) ;
  • Kim, Chang Ho (Department of Precision Mechanical Engineering, Hanyang University) ;
  • Jang, Gun Hee (Department of Precision Mechanical Engineering, Hanyang University)
  • 발행 : 2000.12.01
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초록

In case of the limitation of Deep RIE fabrication far 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 for Micro Gas Turbine bearings. The coupled effect 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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