Transient Thermal Modeling of Ball Bearing Using Finite Element Method

Sibilli, Thierry; Igie, Uyioghosa

doi:10.1115/1.4037861

Cited by 5 publications

(5 citation statements)

References 7 publications

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“…The TNM derives heat balance equations for various complex problems based on electrical laws. 5 Pouly et al 6 studied the power losses in high-speed bearings with the TNM and found that the rolling friction and drag force losses were the two main losses compared to the other sources of power losses. This method simplifies the heat exchanges and is usually applied to analyse the steady and transient temperature field of a working bearing based on the assumption of one-dimensional geometries.…”

Section: Ta Harris Calculated the Frictionmentioning

confidence: 99%

“…: the angular velocity of shaft1, in rad/s. Following the SKF model, 4 the total frictional torque M of the deep groove ball bearing 6016 can be calculated with equation (5). The M seal component is ignored in this study since there are no seals in the bearing used in this study.…”

Section: Model Of Power Loss Caused By the Generation Of Heat By Fricmentioning

confidence: 99%

“…The TNM derives heat balance equations for various complex problems based on electrical laws. 5 Pouly et al. 6 studied the power losses in high-speed bearings with the TNM and found that the rolling friction and drag force losses were the two main losses compared to the other sources of power losses.…”

Section: Introductionmentioning

confidence: 99%

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Effect of track irregularities of high-speed railways on the thermal characteristics of the traction motor bearing

Wang

Song

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part F:

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The operating temperature plays a key role in the service reliability of ball bearings used in the traction motor of high-speed trains. Studies on the heat generation and temperature distributions of the bearing under the vehicle vibration environment are critical for designing the high-speed train traction motor bearing and to monitor its operation. In this paper, an SKF friction torque model that considers the inlet shear heating reduction and kinematic replenishment/starvation reduction was used to calculate the power loss of the bearing operating in a high-speed train. A thermal analysis model of the bearing, which takes into account the vehicle vibration due to track irregularities, was developed to study the thermal characteristics of the bearing operating in a high-speed train. Experiments were conducted on a service high-speed train (i.e. CRH380B) to validate the proposed bearing thermal analysis model. The thermal characteristics of the bearing and the influence of key factors on the operating temperature of the bearing under vehicle vibration due to track irregularities were studied with the proposed bearing thermal analysis model. The results show that the thermal failure of the bearing subassemblies most likely occurs at the balls region owing to the highest temperature in that region, compared to the inner and outer raceway of the bearing. The method of applying grease with appropriate kinematic viscosity should be adopted to reduce the power loss of bearing while meeting the lubrication requirement. The vehicle vibration due to track irregularities significantly influences the thermal characteristics of high-speed train motor bearings, which cannot be ignored in the thermal analysis of bearings operating in a high-speed train.

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Section: Ta Harris Calculated the Frictionmentioning

confidence: 99%

Section: Model Of Power Loss Caused By the Generation Of Heat By Fricmentioning

confidence: 99%

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Effect of track irregularities of high-speed railways on the thermal characteristics of the traction motor bearing

Wang

Song

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part F:

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Section: Introductionmentioning

confidence: 99%

“…Another important factor which determines the bearing behavior in terms of dynamics and mechanical power losses and thermal effects is the lubricant flow rate. Sibilli and Igie 19 developed a formulation able to estimate the heat due to friction taking into account design parameters. Zhou et al 20 proposed a measurement method for temperature distribution of bearing inner and outer rings and investigated the influence of applied load and rotating speed on temperature distribution.…”

Section: Introductionmentioning

confidence: 99%

Modeling and experimental study of power losses in a rolling bearing

Giannetti

Meli

Rindi

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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Due to the growing demand for very high performance in aeronautical mechanisms and systems, particular attention must be paid on the bearing modeling and design. In this framework, a fundamental role is played by high peripheral speed and very low power losses. Looking toward this direction, this paper presents an improved model of rolling bearings able to describe the system dynamic behavior and the important effect of different kinds of power losses (friction losses, fluid dynamic losses, etc.). The proposed model is characterized by a high numerical efficiency and allows the investigation of the rolling bearing behavior both under transient and steady conditions. A comparison between the experimental and simulated results is also presented in this paper. The analysis of the results is encouraging and shows a good agreement between experiments and model simulations.

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