Laser Texturing한 평행 스러스트 베어링의 윤활특성 : 제3보 - 딤플 수의 영향
Lubrication Characteristics of Laser Textured Parallel Thrust Bearing : Part 3 - Effect of Number of Dimples
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초록
Laser surface texturing (LST) methods are widely applied recently to reduce friction and improve reliability of machine components such as thrust bearings, mechanical face seals and piston rings, etc. In this paper, numerical analysis is carried out to investigate the effect of number of dimples on the lubrication characteristics of parallel thrust bearing using a commercial computational fluid dynamics (CFD) code, FLUENT. Pressure distributions of present analysis are physically consistent than those obtained from numerical analysis of Reynolds equation. The overall lubrication characteristics are highly affected by number of dimples and their locations. The results can be use in design of optimum dimple characteristics to improve thrust bearing performance and further researches are required.
Abstract
Laser surface texturing (LST) methods are widely applied recently to reduce friction and improve reliability of machine components such as thrust bearings, mechanical face seals and piston rings, etc. In this paper, numerical analysis is carried out to investigate the effect of number of dimples on the lubrication characteristics of parallel thrust bearing using a commercial computational fluid dynamics (CFD) code, FLUENT. Pressure distributions of present analysis are physically consistent than those obtained from numerical analysis of Reynolds equation. The overall lubrication characteristics are highly affected by number of dimples and their locations. The results can be use in design of optimum dimple characteristics to improve thrust bearing performance and further researches are required.
참고문헌 (13)
- Etsion, I, "State of the Art in Laser Surface Texturing", Trans. ASME, J. of Tribology, 127, pp.248~253 (2005)
- Brizmer, V, "A Laser Surface Textured Parallel Thrust Bearing", Tribology Trans, 46, pp.397~403 (2003)
- Feldman, Y, "The Validity of the Reynolds Equation in Modeling Hydrostatic Effects In Gas Lubricated Textured Parallel Surfaces", Trans. ASME, J. of Tribology, 128, pp.345~250 (2006)
- Olver, A. V, "‘Inlet Suction’, a Load Support Mechanism in Non-convergent, Pocketed, Hydrodynamic Bearings", Proc. IMechE, J. of Eng. Tribology, 통권 : 220, pp.105~108 (2006)
- Fowell, M, "Entrainment and Inlet Suction : Two Mechanisms of Hydro- dynamic Lubrication in Textured Bearings", Trans. ASME, J. of Tribology, 129, pp.221~230 (2007)
- Dzodzo, M., "Pressure and Flow Characteristics in a Shallow Hydrostatic Pocket with Rounded Pocket", Land Joints, 1996, pp.29, 69~76
- Chen, P. Y. P, "Use of Computational Fluid Dynamics in Hydrodynamic Lubrication", Proc. IMechE, 212, pp.427~436 (1998)
- Helene, M, "Numerical Study of the Pressure Pattern in a Two-Dimensional Hybrid Journal Bearing Recess, Laminar, and Turbulent Flow Results", Trans. ASME, J. of Tribology, 125, pp.283~290 (2003)
- Brajdic-Mitidieri, P., "CFD Analysis of a Low Friction Pocketed Pad Bearing", Trans. ASME, J. of Tribology, 127, pp.803~812 (2005)
- 박태조, "Groove 단면형상에 따른 유압 Spool Valve의 윤활해석", 한국윤활학회지, 25(1), pp.13~19 (2009), 한국윤활학회
- 박태조, "Laser Texturing한 평행 스러스트 베어링의 윤활특성 : 제1보 - 딤플깊이의 영향", 한국윤활학회지, 25(5), pp.305~310 (2009), 한국윤활학회
- 박태조, "Laser Texturing한 평행 스러스트 베어링의 윤활특성 : 제2보 - 딤플 위치의 영향", 한국윤활학회지, 26(1), pp.1~6 (2010), 한국윤활학회
- FLUENT, "FLUENT 6.0 Manual", ~ (2002)