Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference (한국윤활학회:학술대회논문집)
- 2003.11a
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- Pages.267-272
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- 2003
Performance Analysis of Gas Foil Journal & Thrust Bearings
가스포일 저널베어링 및 스러스트베어링의 성능해석
- Kim Young-Cheol (Rotordynamics group, KIMM) ;
- Han Jeong-Wan (Department of Mechanical Engineering, KAIST) ;
- Kim Kyung-Woong (Department of Mechanical Engineering, KAIST)
- Published : 2003.11.01
Abstract
This paper presents a performance analysis model of corrugated bump foil bearings. The analyses for not only 1st generation bump foil journal bearings but also bump foil thrust bearings are performed. Static performances such as load capacity, attitude angle, pressure distribution, foil deflection, and film thickness are accurately estimated by using soft elasto-hydrodynamic analysis technique and finite difference numerical method. Also dynamic performances such as stiffness coefficients and damping coefficients are estimated by perturbation method. The analysis technique may be appliable to rotordynamic analysis, stability analysis, and optimized bearing design.
Keywords