In this study, the friction fatigue mechanism is employed to describe the quantitative information concerning characterization of the steady-state wear process in journal bearings, which combined with the load sharing notion in mixed lubrication. For this approach, the asperity stress cycle number is estimated by combining the statistical dynamic contact model with the mixed elasto-hydrodynamic lubrication (EHL) simulation model. The maximum shear stress theory is applied together with the subsurface stress distribution of contact asperities to predict the average volume of wear fragment for asperity. Quantitative analysis of steady-state wear profiles for the bearing reveals that the maximum wear depth appears at both ends of the bearing. With the increase of running time, the wear gradually extends to the bearing centre, and the wear rate rapidly decreases to a certain value and then tends to be stable. With this lubricated wear model, the influences of surface roughness, exte...

中文翻译：

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用于确定轴颈轴承表面上的磨损表面几何形状的润滑磨损模型

在这项研究中，摩擦疲劳机理被用来描述有关轴颈轴承稳态磨损过程表征的定量信息，并结合了混合润滑中的负载分担概念。对于这种方法，通过将统计动态接触模型与混合弹性流体动力润滑（EHL）仿真模型相结合来估计粗糙应力循环数。将最大剪切应力理论与接触粗糙表面的地下应力分布一起应用，以预测粗糙表面的平均磨损碎片量。轴承稳态磨损曲线的定量分析表明，最大磨损深度出现在轴承的两端。随着运行时间的增加，磨损逐渐扩展到轴承中心，磨损率迅速下降到一定值，然后趋于稳定。使用这种润滑的磨损模型，表面粗糙度的影响得以消除。