Abstract This paper presents a combination of models that together calculate the cage and roller speeds of a cylindrical roller bearing. The models consider elastohydrodynamic lubrication and contact elasticity between the roller and raceway, roller centrifugal forces, hydrodynamic lubrication at the cage pocket, and frictional forces. Using these models, the predicted cage and roller speeds and the extent of slip are compared to measurements acquired on cylindrical roller bearings in a commercial gearbox in steady-state and transient operating conditions of a wind turbine. In steady-state conditions at low wind speeds and low lubricant temperatures, cage and roller slip up to 60% occur in the loaded zone of the bearing. In the unloaded zone, up to 80% roller slip occurs. Cage and roller slip then decrease as the lubricant temperature and wind speed increases. In general, the analytical model results match experimental measurements within 10% for lubricant temperatures above 40 ° C and wind speeds over 10 meters per second. The analytical model is further evaluated during a transient start-up event and highly dynamic emergency stop event and also used to examine changes in the bearing design or lubricant properties. Roller and cage slip in cylindrical bearings is a combined effect of the bearing design, applied load, shaft speed, and lubricant properties and temperature, and can be quickly evaluated with the combined analytical models.

中文翻译：

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验证组合分析方法来预测圆柱滚子轴承的滑动

摘要 本文介绍了计算圆柱滚子轴承保持架和滚子速度的模型组合。这些模型考虑了弹性流体动力润滑和滚子和滚道之间的接触弹性、滚子离心力、保持架兜孔处的流体动力润滑和摩擦力。使用这些模型，将预测的保持架和滚子速度以及滑动程度与在风力涡轮机的稳态和瞬态运行条件下在商用齿轮箱中的圆柱滚子轴承上获得的测量值进行比较。在低风速和低润滑剂温度的稳态条件下，保持架和滚子的滑移率高达 60% 发生在轴承的负载区。在卸载区，发生高达 80% 的滚子打滑。随着润滑剂温度和风速的增加，保持架和滚子的滑动会减少。一般来说，对于超过 40°C 的润滑剂温度和超过 10 米/秒的风速，分析模型结果与实验测量的匹配度在 10% 以内。在瞬态启动事件和高动态紧急停止事件期间进一步评估分析模型，还用于检查轴承设计或润滑剂特性的变化。圆柱轴承中的滚子和保持架滑移是轴承设计、施加的载荷、轴速度、润滑剂特性和温度的综合影响，可以使用组合分析模型进行快速评估。在瞬态启动事件和高动态紧急停止事件期间进一步评估分析模型，还用于检查轴承设计或润滑剂特性的变化。圆柱轴承中的滚子和保持架滑移是轴承设计、施加的载荷、轴速度、润滑剂特性和温度的综合影响，可以使用组合分析模型进行快速评估。在瞬态启动事件和高动态紧急停止事件期间进一步评估分析模型，还用于检查轴承设计或润滑剂特性的变化。圆柱轴承中的滚子和保持架滑移是轴承设计、施加的载荷、轴速度、润滑剂特性和温度的综合影响，可以使用组合分析模型进行快速评估。