In the present study, thermal starved elastohydrodynamic lubrication (EHL) model is developed for a helical gear pair. The influences of inlet oil‐supply layer, input speed, lubricant viscosity, and surface roughness on the lubrication behaviour are investigated. The minimum film thickness, temperature rise of teeth surfaces and oil film, and the friction coefficient are predicted along the line of action (LOA). Results show that the effects of inlet oil‐supply layer, input speed, and lubrication viscosity on the tribological performance are remarkable. Under the starved lubrication, the influence of inlet oil supply on the temperature rise is insignificant. Meanwhile, the effect of surface roughness has been discussed. It reveals that the roughness texture along the entrainment velocity direction has significant influence on the lubrication characteristics. The results provide the tribological guidance for design of a helical gear pair in engineering.

中文翻译：

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饥饿润滑条件下斜齿轮副的热弹性流体动力润滑分析

在本研究中，开发了斜齿轮副的热饥饿弹性流体动力润滑（EHL）模型。研究了进油口层，输入速度，润滑剂粘度和表面粗糙度对润滑性能的影响。沿作用线（LOA）可以预测最小膜厚，牙齿表面和油膜的温升以及摩擦系数。结果表明，进气口供油层，输入速度和润滑粘度对摩擦性能有显着影响。在缺乏润滑的情况下，入口供油对温度升高的影响微不足道。同时，已经讨论了表面粗糙度的影响。结果表明，沿夹带速度方向的粗糙度织构对润滑性能有显着影响。研究结果为工程中斜齿轮副的设计提供了摩擦学指导。