Influence of Micro Trapezoidal-Groove on Behavior of Sliding Tribopairs
The effect of various micro isosceles-trapezoid grooves on improvement of tribological performance is discussed. It is accomplished through the CFD-approach where the momentum and continuity equations are solved separately, one of low Reynolds turbulence models-Abid index and SIMPLE algorithm in theory of Control Volume Method are adopted. For different width and depth of micro isosceles-trapezoid grooves, the load supporting capacity of oil-film are compared. The results show that the widths has more influence than the depths on hydrodynamic lubrication, and relative parameters change monotonously with the depth of micro-groove. The effect of texturing arc-grooves on improvement of tribological properties is conspicuous if w1 = 40μm, w2 = 10μm and hp = 10μm for micro isosceles-trapezoid grooves.
Yi-Min Deng, Aibing Yu, Weihua Li and Di Zheng
P. Y. Zhang et al., "Influence of Micro Trapezoidal-Groove on Behavior of Sliding Tribopairs", Applied Mechanics and Materials, Vols. 37-38, pp. 544-549, 2010