Temperature Characteristics of Axle-Box Bearings Under Wheel Flat Excitation
The high-amplitude and high-frequency wheel–rail impacts excited by wheel flat result in severe contact friction in axle-box bearing (ABB), and the friction can cause a temperature rise or even structural damage of ABB. To this end, a thermal analysis model considering the vehicle operation environm...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-01-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/13/1/19 |
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| author | Yaping Luo Fan Zhang Zhiwei Wang Chen Yang Weihua Zhang Fengshou Gu |
| author_facet | Yaping Luo Fan Zhang Zhiwei Wang Chen Yang Weihua Zhang Fengshou Gu |
| author_sort | Yaping Luo |
| collection | DOAJ |
| description | The high-amplitude and high-frequency wheel–rail impacts excited by wheel flat result in severe contact friction in axle-box bearing (ABB), and the friction can cause a temperature rise or even structural damage of ABB. To this end, a thermal analysis model considering the vehicle operation environment is proposed to analyze the temperature characteristics of ABB. Various coupling dynamics effects between the vehicle–track system and ABB are synergistically integrated. The heat conduction, convection, and radiation between the various components of ABB are also integrated into the thermal analysis modeling. By the field tests, the accuracy of the ABB thermal model is validated. The results obtained through the model simulation show that the ABB temperature increases with vehicle speed and wheel flat length, and the ABB temperature at the outside row is higher than that at the inside row. Moreover, the temperature of the roller, cage, inner ring, outer ring, and axle box increases following an ascending order. Specifically, the temperature at the small end of the roller is higher than that at the large end. The findings of this study can provide engineering guidelines for the condition monitoring of ABBs. |
| format | Article |
| id | doaj-art-426dec7aa888418294aaa501d84ae725 |
| institution | Kabale University |
| issn | 2075-4442 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj-art-426dec7aa888418294aaa501d84ae7252025-01-24T13:39:00ZengMDPI AGLubricants2075-44422025-01-011311910.3390/lubricants13010019Temperature Characteristics of Axle-Box Bearings Under Wheel Flat ExcitationYaping Luo0Fan Zhang1Zhiwei Wang2Chen Yang3Weihua Zhang4Fengshou Gu5State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, ChinaSchool of Design, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, ChinaState Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, ChinaCentre for Efficiency and Performance Engineering, University of Huddersfield, Huddersfield HD1 3DH, UKThe high-amplitude and high-frequency wheel–rail impacts excited by wheel flat result in severe contact friction in axle-box bearing (ABB), and the friction can cause a temperature rise or even structural damage of ABB. To this end, a thermal analysis model considering the vehicle operation environment is proposed to analyze the temperature characteristics of ABB. Various coupling dynamics effects between the vehicle–track system and ABB are synergistically integrated. The heat conduction, convection, and radiation between the various components of ABB are also integrated into the thermal analysis modeling. By the field tests, the accuracy of the ABB thermal model is validated. The results obtained through the model simulation show that the ABB temperature increases with vehicle speed and wheel flat length, and the ABB temperature at the outside row is higher than that at the inside row. Moreover, the temperature of the roller, cage, inner ring, outer ring, and axle box increases following an ascending order. Specifically, the temperature at the small end of the roller is higher than that at the large end. The findings of this study can provide engineering guidelines for the condition monitoring of ABBs.https://www.mdpi.com/2075-4442/13/1/19axle-box bearingtemperature characteristicwheel flatthermal analysis modelvehicle operation environment |
| spellingShingle | Yaping Luo Fan Zhang Zhiwei Wang Chen Yang Weihua Zhang Fengshou Gu Temperature Characteristics of Axle-Box Bearings Under Wheel Flat Excitation Lubricants axle-box bearing temperature characteristic wheel flat thermal analysis model vehicle operation environment |
| title | Temperature Characteristics of Axle-Box Bearings Under Wheel Flat Excitation |
| title_full | Temperature Characteristics of Axle-Box Bearings Under Wheel Flat Excitation |
| title_fullStr | Temperature Characteristics of Axle-Box Bearings Under Wheel Flat Excitation |
| title_full_unstemmed | Temperature Characteristics of Axle-Box Bearings Under Wheel Flat Excitation |
| title_short | Temperature Characteristics of Axle-Box Bearings Under Wheel Flat Excitation |
| title_sort | temperature characteristics of axle box bearings under wheel flat excitation |
| topic | axle-box bearing temperature characteristic wheel flat thermal analysis model vehicle operation environment |
| url | https://www.mdpi.com/2075-4442/13/1/19 |
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