Abstract This study proposes a scuffing model for spur gear contacts. A heat transfer formulation is devised to evaluate gear bulk temperature, with frictional heat flux yielded from thermal mixed elastohydrodynamic lubrication (EHL) analysis. In return, the bulk temperature is fed back into the EHL modeling to determine tribological behavior within contact zone, including flash temperature. After bulk temperature stabilizes, the bulk and flash components are added to arrive the total surface temperature, whose maximum is compared to a scuffing limit for failure determination. Utilizing the model, a set of simulations is performed to demonstrate the influences of surface roughness and rotational speed on scuffing load.

中文翻译：

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正齿轮接触的磨损模型

摘要 本研究提出了正齿轮接触的磨损模型。设计了一种传热公式来评估齿轮整体温度，摩擦热通量由热混合弹性流体动力润滑 (EHL) 分析产生。作为回报，整体温度被反馈到 EHL 模型中，以确定接触区域内的摩擦学行为，包括闪蒸温度。整体温度稳定后，加入整体和闪点成分以达到总表面温度，将其最大值与磨损极限进行比较以确定故障。利用该模型，进行了一组模拟，以证明表面粗糙度和转速对磨损载荷的影响。