Surface texture has been proved to be an effective method to improve lubrication performance in lubrication contact. However, there exists the controversy about the influence of surface texture on lubrication performance of journal bearings. Moreover, the effect of texture position is not fully understood in current literatures. In the present work, a mass conservation Reynolds equation is employed to investigate the lubrication performance of journal bearings. Bearing characteristics such as the maximum pressure, load‐carrying capacity, friction force, friction coefficient are predicted with elliptical grooves. Two types of microgrooves are comprehensively investigated. The transversal groove in the divergent region (θ_g = 210° in the case) almost does not influence the lubrication performance. The grooves in the inlet and maximum pressure region provide a potential possibility to improve the lubrication performance of journal bearings. In the cases, full grooves yield negative influence on lubrication performance. In addition, the influence of groove configuration is also investigated under different operating conditions. The dimensionless performance parameters for the microgroove in the maximum pressure region (θ_g = 120° in the case) are more sensitive to the microgroove configuration.

中文翻译：

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横向和横向微槽轴颈轴承之间的流体动力学特性比较

已经证明表面纹理是改善润滑接触中润滑性能的有效方法。然而，关于表面纹理对轴颈轴承润滑性能的影响存在争议。此外，纹理位置的影响在当前文献中还没有被完全理解。在目前的工作中，采用质量守恒的雷诺方程来研究轴颈轴承的润滑性能。带有椭圆形凹槽的轴承特性（如最大压力，承载能力，摩擦力，摩擦系数）可以预测。全面研究了两种类型的微槽。在扩散区域中的横向槽（θ_克 = 210°在这种情况下）几乎不影响润滑性能。入口和最大压力区域中的凹槽为改善轴颈轴承的润滑性能提供了潜在的可能性。在这种情况下，满槽会对润滑性能产生负面影响。此外，还研究了在不同操作条件下凹槽配置的影响。在最大压力区域（微槽的无量纲性能参数θ_克 = 120°的情况下）是微槽配置更为敏感。