Analysis of Wheel Wear and Wheel-Rail Dynamic Characteristics of High-Speed Trains under Braking Conditions
When high-speed trains operate under braking conditions, the wheel-rail interaction increases significantly, which can lead to more serious wear problems. To analyze the evolution of wheel wear and the dynamic characteristics of wheel-rail under braking conditions, this paper first carries out long-...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2024/9618500 |
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| _version_ | 1850216398585856000 |
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| author | Rui Song Chenxu Lu Lixia Sun Zhongkai Zhang Dilai Chen Gang Shen |
| author_facet | Rui Song Chenxu Lu Lixia Sun Zhongkai Zhang Dilai Chen Gang Shen |
| author_sort | Rui Song |
| collection | DOAJ |
| description | When high-speed trains operate under braking conditions, the wheel-rail interaction increases significantly, which can lead to more serious wear problems. To analyze the evolution of wheel wear and the dynamic characteristics of wheel-rail under braking conditions, this paper first carries out long-term monitoring of the service state of wheel-rail during the operation period. The study analyzed the matching characteristics of the measured wheel-rail profile and calibrated the wear model by using the collected data. The resulting wear prediction model was then used to examine the wheel wear characteristics under braking conditions. The research results indicate that during the operation period, the wheel experiences tread concave wear within a range of ±20 mm of the rolling circle, at a rate of approximately 0.05 mm per 10,000 km. Meanwhile, the rail experiences top surface wear at a natural rate of about 0.09 mm per year. Concave wear causes the contact point of the wheel-rail to appear in two zones, resulting in a sudden change of contact geometric parameters. The concave worn wheel and rail with a 60 N profile have better matching compared to the 60 rail profile. Increasing the braking torque and wheel-rail friction coefficient will significantly increase the wheel wear depth on straight sections. On small-radius curve sections, rail side lubrication can significantly reduce high rail side wheel flange wear. A worn concave wheel can lead to unfavorable wheel-rail contact geometry characteristics and increase low-frequency components in the vehicle’s lateral dynamic response. |
| format | Article |
| id | doaj-art-3c0b238de9fc43c7b25b125aaffe9b24 |
| institution | OA Journals |
| issn | 1875-9203 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-3c0b238de9fc43c7b25b125aaffe9b242025-08-20T02:08:19ZengWileyShock and Vibration1875-92032024-01-01202410.1155/2024/9618500Analysis of Wheel Wear and Wheel-Rail Dynamic Characteristics of High-Speed Trains under Braking ConditionsRui Song0Chenxu Lu1Lixia Sun2Zhongkai Zhang3Dilai Chen4Gang Shen5Railway and Urban Rail Transit Research InstituteSchool of Railway TransportationRailway Science and Technology Research and Development Center of China Academy of Railway Sciences Corporation LimitedStandards and Metrology Research Institute of China Academy of Railway Sciences Corporation LimitedSchool of Railway TransportationRailway and Urban Rail Transit Research InstituteWhen high-speed trains operate under braking conditions, the wheel-rail interaction increases significantly, which can lead to more serious wear problems. To analyze the evolution of wheel wear and the dynamic characteristics of wheel-rail under braking conditions, this paper first carries out long-term monitoring of the service state of wheel-rail during the operation period. The study analyzed the matching characteristics of the measured wheel-rail profile and calibrated the wear model by using the collected data. The resulting wear prediction model was then used to examine the wheel wear characteristics under braking conditions. The research results indicate that during the operation period, the wheel experiences tread concave wear within a range of ±20 mm of the rolling circle, at a rate of approximately 0.05 mm per 10,000 km. Meanwhile, the rail experiences top surface wear at a natural rate of about 0.09 mm per year. Concave wear causes the contact point of the wheel-rail to appear in two zones, resulting in a sudden change of contact geometric parameters. The concave worn wheel and rail with a 60 N profile have better matching compared to the 60 rail profile. Increasing the braking torque and wheel-rail friction coefficient will significantly increase the wheel wear depth on straight sections. On small-radius curve sections, rail side lubrication can significantly reduce high rail side wheel flange wear. A worn concave wheel can lead to unfavorable wheel-rail contact geometry characteristics and increase low-frequency components in the vehicle’s lateral dynamic response.http://dx.doi.org/10.1155/2024/9618500 |
| spellingShingle | Rui Song Chenxu Lu Lixia Sun Zhongkai Zhang Dilai Chen Gang Shen Analysis of Wheel Wear and Wheel-Rail Dynamic Characteristics of High-Speed Trains under Braking Conditions Shock and Vibration |
| title | Analysis of Wheel Wear and Wheel-Rail Dynamic Characteristics of High-Speed Trains under Braking Conditions |
| title_full | Analysis of Wheel Wear and Wheel-Rail Dynamic Characteristics of High-Speed Trains under Braking Conditions |
| title_fullStr | Analysis of Wheel Wear and Wheel-Rail Dynamic Characteristics of High-Speed Trains under Braking Conditions |
| title_full_unstemmed | Analysis of Wheel Wear and Wheel-Rail Dynamic Characteristics of High-Speed Trains under Braking Conditions |
| title_short | Analysis of Wheel Wear and Wheel-Rail Dynamic Characteristics of High-Speed Trains under Braking Conditions |
| title_sort | analysis of wheel wear and wheel rail dynamic characteristics of high speed trains under braking conditions |
| url | http://dx.doi.org/10.1155/2024/9618500 |
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