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

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Effect of the Texture Shape Aspect Ratio on Friction Reduction in a Hydrodynamic Lubrication Regime

유체윤활영역에서 패턴의 모양비율에 따른 마찰 저감효과

  • Lee, Daehun (School of Mechanical Engineering, Yeungnam University) ;
  • Park, Sang-Shin (School of Mechanical Engineering, Yeungnam University) ;
  • Ko, Tae Jo (School of Mechanical Engineering, Yeungnam University) ;
  • Shim, Jaesool (School of Mechanical Engineering, Yeungnam University)
  • Received : 2017.03.01
  • Accepted : 2017.03.13
  • Published : 2017.04.30
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Abstract

Friction occurs when surfaces that are in contact move relatively between solid surfaces, fluid layers, and materials slide against one another. This friction force causes wear on the contact surface, generates unwanted heat and leads to performance degradation. Thus, much research has been performed to avoid friction reduction. Among these studies, a textured surface that has micro patterns on the surface has drawn attention for its ability to reduce friction. A mathematical model is developed in this study to examine friction reduction due to the texture of a surface. Numerical simulations are carried out with respect to various factors such as the shape aspect ratio and texture depth of a diamond-shaped texture in the hydrodynamic lubrication regime. As a result, a shape aspect ratio of 1 is best for friction reduction.

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References

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