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An Improved Dynamic Modelling for Exploring Ball bearing Vibrations from Time-Varying Oil Film

Journal of Dynamics, Monitoring and Diagnostics 2022年第2期1卷 93-102页

作者： Minmin Xu Zhenzhen Song Xiaoxi Ding Guoxing Li Yimin Shao James Xi Gu State Key Laboratory of Mechanical Transmission Chongqing UniversityChongqing 400044China College of Mechanical and Vehicle Engineering Taiyuan University of TechnologyTaiyuan 030024China School of Engineering University of BoltonBoltonBL35ABUK

bearings are key components in rotating machinery,which is widely used in many fields,such as CNC machines,wind turbines and induction *** increasingly harsh operation environment can lead to wear and tear on raceways and reduce the precision and reliability of bearing or even *** could relieve the wear to some degree,which is benefit to prolong the bearing’s ***,investigation on the vibration responses under the influence of oil film is of great ***,for mechanism analysis,how to include the oil film into the bearing dynamic model affects the result and efficiency of *** address this problem,this study proposed a fast algorithm through load distribution and interpolation when calculating oil film stiffness and thickness during the solution of bearing vibration *** of oil film on vibration is carried out and a bearing test rig is designed to verify the proposed *** simulation result shows that rotational speed and load have vital effect on oil film and *** experimental result is consistent with the simulation,which shows that the proposed model has a better performance on modeling bearing vibration and the method of considering oil film is reasonable.

关键词： dynamic modeling fault diagnosis lubrication rolling elements bearing time-varying oil film

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