Browse > Article
http://dx.doi.org/10.9725/kstle.2005.21.6.289

Partial-EHL Analysis of Wheel Bearing for a Vehicle  

Kim Dong-Won (Precision and Mechanical Engineering, Pusan National University)
Lee Sang-Don (Precision and Mechanical Engineering, Pusan National University)
Cho Yong-Joo (School of Mechanical Engineering, Pusan National University)
Publication Information
Tribology and Lubricants / v.21, no.6, 2005 , pp. 289-295 More about this Journal
Abstract
Most machine element, such as gears and bearings, are operated in the mixed lubrication region. Contact between two asperities has an effect on machine life by increasing local pressure. To estimate fatigue life exactly, asperity contact should be considered as a factor of fatigue life because this happening produce friction, abrasion and make flash temperature. In this paper, asperity contact is considered as a result of film breakdown when lubricant pressure is not enough to separate two asperities. Contact pressure is calculated to asperity overlap region and added to lubricant pressure. For this model, numerical procedure is introduced and the result on surface roughness and velocity for wheel bearing is presented. Results of EHL analysis for wheel bearing show that asperity contact is occurred at the edge ofEHL conjunction where has a insufficient lubricant pressure to separate two surface.
Keywords
ball bearing; rough surface; partial EHL;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Venner, C.H. and Lubrecht, A. A., 'Transient Analysis of Surface Features in an EHL Line Contact in the Case of Sliding,' ASME Journal of Tribology, Vol. 116, pp.186-193, 1994   DOI   ScienceOn
2 Dawson, D. and Higginson, G.R., 'Elastohydrodynamic Lubrication,' Pergamon, Oxford, 1966
3 Patir, N. and Cheng, H. S. 'An average Flow Model for Determining Effects of Three-Dimensional Roughness on Partial hydrodynamic Lubrication,' ASME J. Lubri. Tech., 100, pp. 12-17, 1978   DOI   ScienceOn
4 Jiang, X., Hua, D. Y., Cheng, H. S., Ai, X. and Lee, S. C., 'A Mixed Elastohydrodynamic Lubrication Model with Asperity Contact,' ASME Journal of Tribology, 121, July, 1999
5 C. H. Venner and W. E. ten Napel 'Surface Roughness effects in an EHL Line Contact,' ASME J. Tribol., 114(4) 616-622, 1992   DOI
6 Hu Yz and Zhu, D. 'A full numerical solutioj to the mixed lubrication in point contacts,' Journal of Tribology, 122, pp.1-9, 2000   DOI   ScienceOn
7 Roelands, C.J.A., 'Correlational Aspects of the viscosity-temperature-pressure relationship of lubricating oils, Druk, V.R.B., Groinen, Netherland, 1966
8 Love A. E. H., 'Stress Produced in a Semi-Infinite Solid by Pressure on Part of the Boundary,' Phil. Trans. Royal Society, A228, pp.377-420, 1929
9 최정식, 김태완, 구영필, 조용주, '비정규 높이 분포 표면의 탄성 변형을 고려한 Flow Factor,' 한국윤활학회 제37회 추계학술대회, PP.201-209, 2003
10 Zhu, D. and Ai, X., 'Point Contact EHL Based on Optically Measured Three-Dimensional Rough Surfaces,' ASME Journal of Triblolgy, 119(3), pp.375-384, 1997   DOI   ScienceOn
11 L. Chang, 'A deterministic model for line contact partial elasto-hydrodynamic lubrication,' Triblo. Int., 28(2), pp.75-84, 1995   DOI   ScienceOn
12 김태완, '탄성유체윤활 상태에서의 접촉 피로 수명 예측에 관한 연구,' 부산대학교, 박사학위 논문, 2003