Research on wear and grinding models of high-speed turnouts based on semi-Hertz contact
Abstract In order to reduce turnout rail wear, the paper establishes a coupled dynamics model and a turnout rail wear model that consider the true profile of the turnout rail, the vehicle’s continuous traction force while passing, and the operational resistance. Comparative analysis of various model...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-85016-5 |
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| _version_ | 1841559703716364288 |
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| author | Jincheng Li Yayun Qi Pengpeng Wu Junjun Ding Haohao Ding |
| author_facet | Jincheng Li Yayun Qi Pengpeng Wu Junjun Ding Haohao Ding |
| author_sort | Jincheng Li |
| collection | DOAJ |
| description | Abstract In order to reduce turnout rail wear, the paper establishes a coupled dynamics model and a turnout rail wear model that consider the true profile of the turnout rail, the vehicle’s continuous traction force while passing, and the operational resistance. Comparative analysis of various models for predicting turnout rail wear indicates that the wear energy model is better suited for this purpose. The ideal profile update step for the turnout rail is 0.05 mm, and the adaptive filtering algorithm, tailored to the turnout characteristics, smooths wear distribution effectively while retaining crucial data features. The wear model developed in the paper predicts wear depth that is 89.91% consistent with the measured data. The grinding model introduced in the paper significantly enhances the wheel-rail contact conditions in the turnout, with lateral and vertical vibration accelerations of the vehicle reduced by 52.56% and 30.43%, respectively, during turnout passage. The research offers theoretical support for mitigating rail wear in high-speed turnouts. |
| format | Article |
| id | doaj-art-f2db3db320484ffb8cfa383273c4a94b |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-f2db3db320484ffb8cfa383273c4a94b2025-01-05T12:17:06ZengNature PortfolioScientific Reports2045-23222025-01-0115111710.1038/s41598-024-85016-5Research on wear and grinding models of high-speed turnouts based on semi-Hertz contactJincheng Li0Yayun Qi1Pengpeng Wu2Junjun Ding3Haohao Ding4School of Rail Transportation, Shandong Jiao Tong UniversitySchool of Mechanotronics and Vehicle Engineering, Chongqing Jiao Tong UniversityChina Railway Materials Operation and Maintenance Technology CO., LTDSchool of Mechanical Engineering, Southwest Jiao Tong UniversitySchool of Mechanical Engineering, Southwest Jiao Tong UniversityAbstract In order to reduce turnout rail wear, the paper establishes a coupled dynamics model and a turnout rail wear model that consider the true profile of the turnout rail, the vehicle’s continuous traction force while passing, and the operational resistance. Comparative analysis of various models for predicting turnout rail wear indicates that the wear energy model is better suited for this purpose. The ideal profile update step for the turnout rail is 0.05 mm, and the adaptive filtering algorithm, tailored to the turnout characteristics, smooths wear distribution effectively while retaining crucial data features. The wear model developed in the paper predicts wear depth that is 89.91% consistent with the measured data. The grinding model introduced in the paper significantly enhances the wheel-rail contact conditions in the turnout, with lateral and vertical vibration accelerations of the vehicle reduced by 52.56% and 30.43%, respectively, during turnout passage. The research offers theoretical support for mitigating rail wear in high-speed turnouts.https://doi.org/10.1038/s41598-024-85016-5High-speed turnoutsVehicle-turnout coupled dynamic modelWheel-rail interactionWear predictionTurnout grinding |
| spellingShingle | Jincheng Li Yayun Qi Pengpeng Wu Junjun Ding Haohao Ding Research on wear and grinding models of high-speed turnouts based on semi-Hertz contact Scientific Reports High-speed turnouts Vehicle-turnout coupled dynamic model Wheel-rail interaction Wear prediction Turnout grinding |
| title | Research on wear and grinding models of high-speed turnouts based on semi-Hertz contact |
| title_full | Research on wear and grinding models of high-speed turnouts based on semi-Hertz contact |
| title_fullStr | Research on wear and grinding models of high-speed turnouts based on semi-Hertz contact |
| title_full_unstemmed | Research on wear and grinding models of high-speed turnouts based on semi-Hertz contact |
| title_short | Research on wear and grinding models of high-speed turnouts based on semi-Hertz contact |
| title_sort | research on wear and grinding models of high speed turnouts based on semi hertz contact |
| topic | High-speed turnouts Vehicle-turnout coupled dynamic model Wheel-rail interaction Wear prediction Turnout grinding |
| url | https://doi.org/10.1038/s41598-024-85016-5 |
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