드라이브 ㆍ 컨트롤 (Journal of Drive and Control)

  • 제13권1호
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  • Pages.27-33
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  • 2016
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  • 2671-7972(pISSN)
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  • 2671-7980(eISSN)
유공압건설기계학회 (The Korean Society for Fluid Power and Construction Equipment)
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Surface Texturing에 의한 유압부품의 마찰저감

Surface Texturing in Hydraulic Machine Components for Friction Reduction

  • Park, Tae Jo (School of Mechanical Engineering, ERI, Gyeongsang National University) ;
  • Kim, Min Gyu (Undergraduate School of Mechanical Engineering, Gyeongsang National University)
  • 투고 : 2015.11.18
  • 심사 : 2016.02.18
  • 발행 : 2016.03.01
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초록

In hydraulic machinery, the hydraulic fluid acts primarily as working fluid and secondarily as a lubricant. Hence, the viscous friction force acting on the sliding components should be reduced to improve the mechanical efficiency. It is now well known that the surface texturing is a useful method for friction reduction. In this study, using a commercial computational fluid dynamics (CFD) code, FLUENT, the lubrication characteristics of a surface textured slider bearing under high boundary pressure difference is studied. The streamlines, velocity profiles, pressure distributions, load capacity, friction force and leakage flowrate are highly affected by the film thickness ratio and the textured region. Partial texturing at the inlet region of the inclined slider bearing can reduce both friction force and leakage flowrate than in the untextured case. The present results can be used to improve the lubrication characteristics of hydraulic machinery.

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참고문헌

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