Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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A study on lubrication Properties of a Dimple Pattern using an Average Flow Analysis with a Contact Model of Asperities

돌기 접촉 모델과 평균 유동 분석을 이용한 딤플 패턴의 윤활 특성에 관한 연구

  • Kim, Mi-Ru (Department of Nano Fusion Technology, Pusan National UNIV.) ;
  • Lee, Seung-Jun (Interdisciplinary Department for Innovative Manufacturing Engineering, Pusan National UNIV.) ;
  • Li, Liang (Department of Nano Fusion Technology, Pusan National UNIV.) ;
  • Lee, Deug-Woo (Department of Nano Mechatronics Engineering, Pusan National UNIV.)
  • 김미루 (부산대학교 나노융합기술학과) ;
  • 이승준 (부산대학교 첨단정밀공학협동과정) ;
  • 리량 (부산대학교 나노융합기술학과) ;
  • 이득우 (부산대학교 나노메카트로닉스공학과)
  • Received : 2016.06.28
  • Accepted : 2016.09.22
  • Published : 2016.12.30
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Abstract

To evaluate lubrication properties by surface roughness under boundary and mixed lubrication, a new approach is suggested by both asperity flow and contact with stochastic characteristics. Many researchers already have studied the effect of surface roughness on flow. But, it has become important to research of the phenomenon of asperities contact in surfaces because the growth of asperities contact area under heavy load conditions. In this paper, flow factors in the average flow model derived by Patir and Cheng were used, and a multi-asperity contact model was included to calculate lubrication properties of a surface with a randomly generated rough surface. A numerical analysis using the average Reynolds equation with both the average flow model and the asperity contact model was conducted, and the results were compared with those from previous research. The results showed that the influence of asperities on lubrication and the friction coefficient changed rapidly on application of contact model.

Keywords

References

  1. Kim, J., Je, T. J., Cho, S. H., Jeon, E. C., and Whang, K. H., "Micro-cutting with diamond tool micro-patterned by femtosecond laser," International journal of precision engineering and manufacturing, Vol. 15, No. 6, pp. 1081-1085, 2014. https://doi.org/10.1007/s12541-014-0440-8
  2. Riaz Ahmad Mufti, "Total and Component Friction in a Motored and Firing Engine", A Thesis for a Doctorate, University of Leeds, United Kingdom, 2004.
  3. Lee, S. M., Lee, D. W., Ha, Y. H., Lee, S. J., Hwang, J. H., & Choi, Y. H., "A study on the influence of waviness error to a hydrostatic bearing for a crankshaft pin turner," Tribology Transactions, Vol. 56, No. 6, pp. 1077-1086, 2013. https://doi.org/10.1080/10402004.2013.823532
  4. Tzeng, S.T, Saibel, E., "Surface Roughness Effect on Slider Bearing Lubrication," ASLE Transactions, Vol. 10, pp.334-338, 1967. https://doi.org/10.1080/05698196708972191
  5. Patir, N, Cheng, H.S., "An Average Flow Model for Determining Effects of Three Dimensional Roughness on Partial Hydrodynamic Lubrication," ASME Journal of Lubrication Technology, Vol. 100, pp.12-17, 1978. https://doi.org/10.1115/1.3453103
  6. Patir, N, Cheng, H.S., "Application of the Average Flow Model to Lubrication between Rough Sliding Surfaces," ASME Journal of Lubrication Technology, Vol.101, pp.220-229, 1979. https://doi.org/10.1115/1.3453329
  7. Teale, J.L., Lebeck, A.O., "An Evaluation of the Average Flow Model for Surface Roughness Effects in Lubrication,", ASME Journal of Lubrication Technology, Vol.02, pp.360-367, 1980.
  8. Susan, R. H., Salant, R.F., "An Average Flow Model of Rough Surface Lubrication with Inter- Asperity Cavitation," ASME Journal of Tribology, Vol.123, No.1, pp.134-143, 2001. https://doi.org/10.1115/1.1332397
  9. Lee, S. M., "A study on the lubrication and friction characteristics of the contact surface through the surface analysis", A Thesis for a Doctorate, Pusan National University, Republic of Korea, 2015.
  10. Retrieved from http://www.olympusims.com/fr/knowledge/metrology/roughness/2d_parameter/

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