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Surface Texturing in Hydraulic Machine Components for Friction Reduction
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  • Journal title : Journal of Drive and Control
  • Volume 13, Issue 1,  2016, pp.27-33
  • Publisher : Korea Society of Fluid Power & Construction Equipments
  • DOI : 10.7839/ksfc.2016.13.1.027
 Title & Authors
Surface Texturing in Hydraulic Machine Components for Friction Reduction
Park, Tae Jo; Kim, Min Gyu;
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 Abstract
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.
 Keywords
Surface Texturing;Micro-dimple;Viscous Friction;Hydraulic Machine Components;CFD;
 Language
Korean
 Cited by
 References
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