Thermal-Fluid-Solid Coupling in Thermal Characteristics Analysis of Rolling Bearing System Under Oil Lubrication

Xu, Hao; Yun, Xianghe; Han, Qingkai

doi:10.1115/1.4045377

Cited by 15 publications

(9 citation statements)

References 36 publications

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“…The rolling friction power loss in roller bearings is generally small when compared with the other sources of power loss and is thus neglected. 21 Therefore, only the sliding friction power loss and the viscous drag power loss are considered in the DTRB model presented here.…”

Section: Heat Generation and Heat Transfer Of The Dtrbmentioning

confidence: 99%

“…In the thermal analysis of rolling bearings, the effect of thermal radiation is generally negligible; therefore, it is ignored in this model. 21,18…”

Section: Theoretical Analysismentioning

confidence: 99%

“…Zheng et al 18–20 constructed a thermal network model that considered the thermal expansion of an angular contact ball bearing and compared their model’s results with experimental results; they concluded that the difference between the model values and the experimental values decreased as their thermal network model became increasingly sophisticated. Hao et al 21 established a thermal network model for cylindrical roller bearings and proposed a thermal–fluid–solid coupling model in which a temperature increase affects both the lubricant and the bearing structure. Their thermal–fluid–solid coupling model showed better agreement with the experimental results than the existing thermal model, which did not consider the coupling effect.…”

Section: Introductionmentioning

confidence: 99%

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Fatigue life prediction of double-row tapered roller bearings considering thermal effect

Kim

Suh

Lee

et al. 2023

Advances in Mechanical Engineering

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Thermal effects on fatigue life were investigated by analyzing the thermomechanical behavior of double-row tapered roller bearings (DTRBs) and a fatigue life prediction model was developed. A bearing’s mechanical behavior was analyzed using a quasi-static model and its thermal behavior was analyzed using a thermal network method. Viscous drag and sliding friction at the contact area were considered as heat generation factors for DTRBs. The bearing lubrication characteristics and shape dimensions interacted with the temperature and the analysis was repeated until the entire DTRB system’s temperature converged. DTRB fatigue life was estimated using a fatigue life formula based on Gupta and Zaretsky’s statistical model. Results confirmed that the fatigue life decreased rapidly because of an interference fit that occurred at very high rotation speeds or at very low supply oil flow rates. This interference fit phenomenon is caused by thermal expansion of the bearing element. The interference fit can be prevented by designing with a large initial clearance value, but an initial clearance that is too large affects fatigue life negatively because of load distribution imbalance. Optimal design of the roller end sphere radius to minimize sliding friction for the flange part can provide additional help in preventing interference fit.

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Section: Heat Generation and Heat Transfer Of The Dtrbmentioning

confidence: 99%

“…In the thermal analysis of rolling bearings, the effect of thermal radiation is generally negligible; therefore, it is ignored in this model. 21,18…”

Section: Theoretical Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Fatigue life prediction of double-row tapered roller bearings considering thermal effect

Kim

Suh

Lee

et al. 2023

Advances in Mechanical Engineering

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“…Heat production modes of angular contact ball bearing are divided into 3 types, which are individually associated with load, viscosity, and spin [10,11]. The reason that bearing failure affected by thermal factor is thermal induced preload that is the material expansion of bearing parts due to friction heat production, which changes the contact characteristics between the mating parts and influences the bearing performance execrably [12].…”

Section: Introductionmentioning

confidence: 99%

Study on bearing mechanical and thermal characteristic evolvement rules affected by higher ambient temperature

Yun¹,

Xie²,

Han³

2022

J. vibroeng.

Self Cite

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In this paper, the bearing mechanical characteristics and thermal characteristics as it is running under constant speed (2400 r/min) and constant temperature (100 ℃) adopting bearing mechanical-thermal coupling model built on the basis of quasi-statics and elastohydrodynamic lubrication theory are discussed. Among which, the contact deformation between ball and inner/outer ring has same evolution law, besides, the same as the amplitude. Whose curve shape changes in the form of “circular-oblique D”, its amplitude rearches minimum value at 10thd3h between the location of 120° and 270°. The curve shapes belonging to contact angular between ball and inner/outer ring are similar to “circular”. There is opposite trend of them within the range of 90-300°. The amplitude of contact angular between ball and outer ring is the minimum at 10thd3h and 11thd1h. At the same time, the amplitude of that between ball and inner ring is the maximum. The evolution rules of contact stiffness between ball and inner/outer ring are generally consistent, which are similar to “crab”. But the amplitude of that between ball and outer ring is dominant. The maximum value of them occurs at 10thd3 and 11thd1h. The evolvement tendency of node temperatures maintains stable. Thereinto, the temperature of inner ring equals to that of contact location between ball and inner ring, which is the maximum value. It is obvious that ME, MD, MS, MCB, MCR and MOil devote themselves to heat production, the contribution rates of ME, MS, MCB and MCR are 100 %, the contribution rate of MD ranges from 52.6 % to 65.2 %. However, the amplitudes of friction moments have the opposite trend compared to “heat contribution factor”. The expansion amount owing to heat production is dominant in displacement variation and the effect of clearance on displacement can be ignored, whose evolution rules are contrary. The evolution rules of oil film thickness and oil film stiffness between ball and inner/outer ring are alike. Among which, the oil film thickness between ball and outer ring is dominant, its maximum value emerges at 10thd3h. The curve shapes of oil film stiffness between ball and outer/inner ring are oblique “D”, their amplitudes reach the maximum at 11thd1h-11thd3h.

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“…Liao and Lin [36] investigated the change in load distribution and friction torque increase due to the thermal effect under the elasto-hydrodynamic lubrication (EHL) condition of angular contact ball bearings. Similarly, Hao et al [37] proposed a thermal-fluid-solid coupling model and compared the temperature of rolling bearings with experimental results to validate the coupling model. Recently, Gao et al [38] proposed a kinematic Hertzian thermal hydrodynamic model for angular contact ball bearings and demonstrated that the sliding behavior caused by insufficient traction on the rolling element significantly increased the bearing temperature.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of three-dimensional thermo-elastic rolling contact under steady-state conditions

Suh

2021

Friction

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In this study, a three-dimensional thermo-elastic model that considers the interaction of mechanical and thermal deformation is developed using a semi-analytic method for steady-state rolling contact. Creepage types in all directions are considered in this model. For verification, the numerical analysis results of shear traction and temperature increase are compared separately with existing numerical results, and the consistency is confirmed. The analysis results include heat flux, temperature increase, contact pressure, and shear traction. Under severe rolling conditions, the thermal effect changes the behavior of the contact interface significantly. Furthermore, the effects of creepage, rolling speed, and conformity under different rolling and creep conditions are investigated.

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Thermal-Fluid-Solid Coupling in Thermal Characteristics Analysis of Rolling Bearing System Under Oil Lubrication

Cited by 15 publications

References 36 publications

Fatigue life prediction of double-row tapered roller bearings considering thermal effect

Fatigue life prediction of double-row tapered roller bearings considering thermal effect

Study on bearing mechanical and thermal characteristic evolvement rules affected by higher ambient temperature

Numerical analysis of three-dimensional thermo-elastic rolling contact under steady-state conditions

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