Tribology and Lubricants

Korean Tribology Society (한국트라이볼로지학회)
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Lubrication Characteristics of Laser Textured Parallel Thrust Bearing : Part 2 - Effect of Dimple Location

Laser Texturing한 평행 스러스트 베어링의 윤활특성 : 제2보 - 딤플 위치의 영향

  • Park, Tae-Jo (School of Mechanical & Aerospace Engineering, ERI, Gyeongsang National University) ;
  • Hwang, Yun-Geon (Graduate School, Dept. of Mechanical & Aerospace Engineering, Gyeongsang National University)
  • 박태조 (경상대학교 기계항공공학부.공학연구원) ;
  • 황윤건 (경상대학교 대학원 기계항공공학부)
  • Received : 2009.11.25
  • Accepted : 2009.12.31
  • Published : 2010.02.28
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Abstract

In the last decade, laser surface texturing (LST) has emerged as a viable option of surface engineering. Many problems related with mechanical components such as thrust bearings, mechanical face seals and piston rings, etc, LST result in significant improvement in load capacity, wear resistance and reduction in friction force. It is mainly experimentally reported the micro-dimpled bearing surfaces can reduce friction force, however, precise theoretical results are not presented until now. In this paper, a commercial computational fluid dynamics(CFD) code, FLUENT is used to investigate the lubrication characteristics of a parallel thrust bearing having 3-dimensional micro-dimple. The results show that the pressure, velocity and density distributions are highly affected by the location and number of dimple. The numerical method and results can be use in design of optimum dimple characteristics, and further researches are required.

Keywords

References

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