To enhance the tribological performance of mechanical parts, one of the reliable methods is surface topography modification, in which the surface of one/both interacting contacts were to be modified. Surface texturing is one of the surface modification techniques. In the present work, a numerical code is developed to address the effect of texture shape (elliptical and triangular), size and distribution (parallel and zigzag) on the tribological performance parameters (minimum film thickness, percentage of hydrodynamic load from the total generated pressure and frictional coefficient) under mixed lubrication regime for a known value of load support. In the present analysis, the mass conservative, i.e. Jakobson-Floberg-Ollson (JFO) cavitation condition and couple stresses of lubricant are considered. In addition, surface irregularities are considered by using the flow factors of Patir-Cheng model. The results show that texture shape has a significant effect, whereas the texture distribution has a slight effect on the tribological performance parameters. Moreover, the couple stress of lubricant has a prominent effect on the tribological performance.

中文翻译：

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考虑质量守恒条件和耦合应力参数的混合润滑条件下织构平行滑动接触的摩擦学性能

为了提高机械零件的摩擦学性能，一种可靠的方法是表面形貌修改，其中一个/两个相互作用的接触面被修改。表面纹理化是表面改性技术之一。在目前的工作中，开发了一种数值代码来解决纹理形状（椭圆形和三角形）、尺寸和分布（平行和锯齿形）对摩擦学性能参数（最小薄膜厚度、总产生压力的流体动力载荷百分比）的影响和摩擦系数）在混合润滑状态下，负载支持的已知值。在目前的分析中，质量保守，即Jakobson-Floberg-Ollson (JFO) 空化条件和润滑剂的耦合应力被考虑。此外，利用 Patir-Cheng 模型的流动因子考虑表面不规则性。结果表明，纹理形状对摩擦学性能参数有显着影响，而纹理分布对摩擦学性能参数影响很小。此外，润滑剂的耦合应力对摩擦学性能有显着影响。