Research on rail wear of small radius curve in EMU depot
Purpose – With the help of multi-body dynamics software UM, the paper uses Kik–Piotrowski model to simulate wheel-rail contact and Archard wear model for rail wear. Design/methodology/approach – The CRH5 vehicle-track coupling dynamics model is constructed for the wear study of rails of small radius...
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| Format: | Article |
| Language: | English |
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Emerald Publishing
2022-07-01
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| Series: | Railway Sciences |
| Subjects: | |
| Online Access: | https://www.emerald.com/insight/content/doi/10.1108/RS-04-2022-0014/full/pdf |
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| _version_ | 1850207370672603136 |
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| author | Hao Li Jialin Sun Guotang Zhao |
| author_facet | Hao Li Jialin Sun Guotang Zhao |
| author_sort | Hao Li |
| collection | DOAJ |
| description | Purpose – With the help of multi-body dynamics software UM, the paper uses Kik–Piotrowski model to simulate wheel-rail contact and Archard wear model for rail wear. Design/methodology/approach – The CRH5 vehicle-track coupling dynamics model is constructed for the wear study of rails of small radius curves, namely 200 and 350 m in Guangzhou East EMU Depot and those 250 and 300 m radius in Taiyuan South EMU Depot. Findings – Results show that the rail wear at the straight-circle point, the curve center point and the circle-straight point follows the order of center point > the circle-straight point > the straight-circle point. The wear on rail of small radius curves intensifies with the rise of running speed, and the wearing trend tends to fasten as the curve radius declines. The maximum rail wear of the inner rail can reach 2.29 mm, while that of the outer rail, 10.11 mm. Originality/value – With the increase of the train passing number, the wear range tends to expand. The rail wear decreases with the increase of the curve radius. The dynamic response of vehicle increases with the increase of rail wear, among which the derailment coefficient is affected the most. When the number of passing vehicles reaches 1 million, the derailment coefficient exceeds the limit value, which poses a risk of derailment. |
| format | Article |
| id | doaj-art-62131ddc4fd54c20916e2bf0ead39fce |
| institution | OA Journals |
| issn | 2755-0907 2755-0915 |
| language | English |
| publishDate | 2022-07-01 |
| publisher | Emerald Publishing |
| record_format | Article |
| series | Railway Sciences |
| spelling | doaj-art-62131ddc4fd54c20916e2bf0ead39fce2025-08-20T02:10:32ZengEmerald PublishingRailway Sciences2755-09072755-09152022-07-0111163910.1108/RS-04-2022-0014Research on rail wear of small radius curve in EMU depotHao Li0Jialin Sun1Guotang Zhao2The Ministry of Construction, China Railway Guangzhou Bureau Group Co., Ltd, Guangzhou, ChinaInfrastructure Testing Institute, China Academy of Railway Sciences Corporation Limited, Beijing, ChinaMinistry of science, Technology and Information Technology, China State Railway Group Co., Ltd, Beijing, ChinaPurpose – With the help of multi-body dynamics software UM, the paper uses Kik–Piotrowski model to simulate wheel-rail contact and Archard wear model for rail wear. Design/methodology/approach – The CRH5 vehicle-track coupling dynamics model is constructed for the wear study of rails of small radius curves, namely 200 and 350 m in Guangzhou East EMU Depot and those 250 and 300 m radius in Taiyuan South EMU Depot. Findings – Results show that the rail wear at the straight-circle point, the curve center point and the circle-straight point follows the order of center point > the circle-straight point > the straight-circle point. The wear on rail of small radius curves intensifies with the rise of running speed, and the wearing trend tends to fasten as the curve radius declines. The maximum rail wear of the inner rail can reach 2.29 mm, while that of the outer rail, 10.11 mm. Originality/value – With the increase of the train passing number, the wear range tends to expand. The rail wear decreases with the increase of the curve radius. The dynamic response of vehicle increases with the increase of rail wear, among which the derailment coefficient is affected the most. When the number of passing vehicles reaches 1 million, the derailment coefficient exceeds the limit value, which poses a risk of derailment.https://www.emerald.com/insight/content/doi/10.1108/RS-04-2022-0014/full/pdfEMU depotSmall radius curveRail wearVehicle-track coupling dynamicsDynamic response |
| spellingShingle | Hao Li Jialin Sun Guotang Zhao Research on rail wear of small radius curve in EMU depot Railway Sciences EMU depot Small radius curve Rail wear Vehicle-track coupling dynamics Dynamic response |
| title | Research on rail wear of small radius curve in EMU depot |
| title_full | Research on rail wear of small radius curve in EMU depot |
| title_fullStr | Research on rail wear of small radius curve in EMU depot |
| title_full_unstemmed | Research on rail wear of small radius curve in EMU depot |
| title_short | Research on rail wear of small radius curve in EMU depot |
| title_sort | research on rail wear of small radius curve in emu depot |
| topic | EMU depot Small radius curve Rail wear Vehicle-track coupling dynamics Dynamic response |
| url | https://www.emerald.com/insight/content/doi/10.1108/RS-04-2022-0014/full/pdf |
| work_keys_str_mv | AT haoli researchonrailwearofsmallradiuscurveinemudepot AT jialinsun researchonrailwearofsmallradiuscurveinemudepot AT guotangzhao researchonrailwearofsmallradiuscurveinemudepot |