表面织构排布形式对其润滑特性的影响

建立不同排布形式表面织构的几何模型，基于N S方程并采用CFD方法分析其油膜压力分布，并考察其流场流动情况和不同间距对承载能力的影响。结果表明，不同排布形式的表面织构对润滑特性有很大的影响，其中，交错排布的表面织构具有最高的承载力。微凹坑之间存在最优间距，使其所产生动压效应的作用发挥得最充分。交错排布的微凹坑织构最优面积率比均匀排布的微凹坑织构有了很大的提高。

Effect of Surface Texture Arrangements on Lubrication Characteristics

The geometrical models of surface textures with different arrangements were established. The pressure distribution and flow field were analyzed and the effect of different spacings on bearing capacity was investigated. The results show that different arrangements of surface texture have a great influence on the lubrication characteristics, and intersectional arrangement has the highest bearing capacity. The optimum spacing among micro-dimples gives full play to the hydrodynamic effect. The optimum density of intersectional micro dimple texture has greater improvement than that of regular micro dimple texture.