Effect of thermal elastohydrodynamic lubrication on vibration characteristics of ball bearing with local defect

Wang, Yübo; Yan, Changfeng; Zheng, Lu; Liu, Yaofeng; Wu, Lixiao

doi:10.1177/14644193221095438

Cited by 4 publications

(4 citation statements)

References 38 publications

(46 reference statements)

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“…The inner raceway is used as an example because the thermal effect of the inner raceway is more pronounced than that of the outer raceway. 39 Table 2 details the experimental working circumstances while Table 4 describes the physical properties of the lubricant. Figure 17 displays the obtained outcomes.…”

Section: Discussionmentioning

confidence: 99%

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Dynamic modelling of deep groove ball bearings with different local defects considering skidding and thermal elastohydrodynamic lubrication

Tian

Yan

Liu

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part K:

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The vibration characteristics and skidding behaviour of deep groove ball bearings (DGBBs) are significantly influenced by the evolution of local defects and thermal effects. In previous studies, the influences of skidding and thermal effects were not considered in order to simplify the model of defective bearings. But the presence of skidding and thermal should not be ignored to accurately simulate the operation of bearing. To gain a comprehensive understanding of the operational mechanism of defective bearings, it is crucial to examine the skidding and thermal characteristics of various defect types using dynamic modelling approaches. In this study, the DGBB dynamic model for seven types of defects is established, which considers the self-rotation, rotation, and radial motion of ball, the contact force, ball/cage and ball/raceway skidding, and the effects of thermal elastohydrodynamic lubrication (TEHL). Experimental data from a machine fault simulator test rig is utilized to validate the accuracy of the proposed modelling methods. The results indicate that compound defects (CDs) (CDs) result in higher vibration amplitudes and more severe skidding phenomena compared to single defects (SDs). Furthermore, compound defects exhibit a greater thermal effect on the oil film in the contact area than SDs, significantly impacting the operational performance of the bearing.

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Section: Discussionmentioning

confidence: 99%

“…A detailed description of the modelling process of the TEHL model can be found in a previous study by our research team. 39 During bearing operation, a lubricant film forms between the ball and the raceway. Thermal effects have a massive impact on the elastohydrodynamic lubrication performance of the oil film.…”

Section: Control Equations Of Tehlmentioning

confidence: 99%

Dynamic modelling of deep groove ball bearings with different local defects considering skidding and thermal elastohydrodynamic lubrication

Tian

Yan

Liu

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part K:

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“…Wang et al 23 improved a vibration model of REB by using an iterative method to solve the contact deformation between the raceway and RE, and analysed the influence of the load, rotor eccentricity and waviness on vibration characteristics of REB. Wang et al 24 researched the impact of thermal EHL condition on the vibration characteristics of REB.…”

Section: Introductionmentioning

confidence: 99%

Dynamic response of rolling element bearing with compound fault considering defect-rolling-element interaction

Luo

Yan

Liu

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Dynamic modelling of rolling element bearing (REB) is a significant method to explore the vibration mechanism generated by fault, and it is the theoretical basis of fault diagnosis of REBs. Aiming at the complexity of defect-rolling-element interaction under radial load, the whole contact process of rolling element (RE) passing over defective area of outer or inner ring is analysed in detail. The impact force excitation function is derived by rotation and revolution velocity of RE. A four degree-of-freedom (DOF) dynamic model of REB with compound fault of both inner and outer raceway surface is developed by considering the time-varying displacement, impact force excitative and elastohydrodynamic lubrication (EHL) condition, and the novelty of the model is that the improved impact force excitation function is used. The experimental validation is carried out on test tig of Machinery Fault Simulator. The change of impact force with shaft speed and defect size is analysed. It is shown that the simulation results of the proposed model are closer to experimental results. A mapping method from defect-rolling-element-defect (DRED) behaviour to time is proposed to study the vibration characteristics of DRED behaviour, the results show that the amplitude of vibration will decrease when the same RE collides with inner and outer raceway defects simultaneously. When the same RE collides with inner and outer raceway defect successively, the amplitude of vibration will reach the maximum during the inner raceway defect rolling over each RE once. The proposed model can be used in practical application to study the influence of compound defects on vibration response of REB.

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“…For example, Xia [15] studied the tribological behavior and vibration characteristics of full ceramic ball bearings under extreme working conditions such as cryogenics, heavy load, and oil-free lubrication. Wang [16] studied the influence of the thermal effect on the elastohydrodynamic lubrication performances of ball bearings and the vibration characteristics of bearings with defects under thermal elastohydrodynamic lubrication. Accordingly, the former analysis is basically carried out under single working conditions.…”

Section: Introductionmentioning

confidence: 99%

Study of the Contact Characteristics of Machine Tool Spindle Bearings under Strong Asymmetric Loads and High-Temperature Lubrication Oil

et al. 2022

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The contact characteristics of angular contact ball bearings are closely related to the thermal failure of high-speed spindle systems. This paper establishes a closed-loop iterative model for analyzing the ball–race contact characteristics of machine tool spindle bearings at different combined loads and oil supply temperatures, based on a five-degree-of-freedom quasi-static analysis model and the finite difference method. Additionally, the accuracy of the proposed model is verified by comparing the measured values of temperature rise with the predicted values. Based on the verification of the accuracy of the model, the contact characteristics of machine tool spindle bearings under strong asymmetric loads and high-temperature lubrication oil are discussed in detail. The results show that at elevated temperatures, the internal loads of angular contact ball bearings operating under combined loads become concentrated, which will lead to reduced fatigue life of the bearings and even thermal seizure.

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Effect of thermal elastohydrodynamic lubrication on vibration characteristics of ball bearing with local defect

Cited by 4 publications

References 38 publications

Dynamic modelling of deep groove ball bearings with different local defects considering skidding and thermal elastohydrodynamic lubrication

Dynamic modelling of deep groove ball bearings with different local defects considering skidding and thermal elastohydrodynamic lubrication

Dynamic response of rolling element bearing with compound fault considering defect-rolling-element interaction

Study of the Contact Characteristics of Machine Tool Spindle Bearings under Strong Asymmetric Loads and High-Temperature Lubrication Oil

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