Influence of Wedge Texture on Hydrodynamic Lubrication Performance
The CFD method based on the N-S equation is used to numerically simulate the surface texture under hydrodynamic lubrication,and the influence of the wedge structure on the surface texture dynamic pressure performance under different geomet-ric parameters is analyzed.The results show that geometric parameters have a significant impact on the dynamic pressure perfor-mance of the texture.The dynamic pressure performance of the symmetrical and wedge-shaped convergent textures first increases and then decreases with the increase of the depth ratio,and increases with the increase of the area ratio.The opposite wedge-shaped structure makes the texture show the opposite dynamic pressure performance,so when the depth ratio increases to a certain extent,the wedge-shaped divergent texture shows better dynamic pressure performance than the wedge-shaped convergent tex-ture.In addition,the orthogonal simulation results show that under the same working conditions,the primary and secondary fac-tors affecting the dynamic pressure performance of the texture are surface shape＞area ratio＞section shape＞depth ratio,and the primary and secondary factors affecting the negative pressure amplitude are in sequence depth ratio＞cross-sectional shape＞sur-face shape＞area ratio,which provides a reference for texture design optimization.
万方数据
维普
