Abstract Vibration analysis of cylindrical roller bearings (CRBs) can be useful for controlling the vibration characteristics of the machinery. To overcome this problem, an improved planar dynamic model is presented for calculating the vibrations of a CRB. All components (such as inner raceway, rollers, cage, and outer raceway) of the CRB system and their interactions are considered in the proposed model, as well as the elastic supports of the shaft and housing. An experiment study is presented to verify the proposed model. The effects of the radial load, shaft speed and bearing clearance on the vibrations of the CRB system are evaluated. The results show that the radial load, shaft speed and bearing clearance have great effects on the vibrations of the bearing components. The vibration accelerations of the raceways, rollers, and cage increase with the increments of the shaft speed and the radial load. In addition, the increment of the pocket clearance results in the increase of the roller-cage contact force. The proposed model can provide a method for the dynamic formulations of the CRBs with the rollers and cage. Moreover, this work can be used for the vibration monitoring of CRBS in the rotating machinery.

中文翻译：

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圆柱滚子轴承振动分析的改进平面动力学模型

摘要 圆柱滚子轴承 (CRB) 的振动分析可用于控制机械的振动特性。为了克服这个问题，提出了一种改进的平面动力学模型来计算 CRB 的振动。CRB 系统的所有组件（如内滚道、滚子、保持架和外滚道）及其相互作用都在建议的模型中考虑，以及轴和轴承座的弹性支撑。提出了一项实验研究来验证所提出的模型。评估径向载荷、轴速度和轴承间隙对 CRB 系统振动的影响。结果表明，径向载荷、轴转速和轴承游隙对轴承部件的振动影响很大。滚道、滚子、和保持架随着轴转速和径向载荷的增加而增加。此外，兜孔间隙的增加导致滚子保持架接触力的增加。所提出的模型可以为带有滚子和保持架的 CRB 的动力学公式提供一种方法。此外，这项工作可用于旋转机械中 CRBS 的振动监测。