A dynamic simulation of the wheel–rail impact caused by a wheel flat using a 3-D rolling contact model
Abstract A three-dimensional (3-D) wheel-rail rolling contact model with a wheel flat was built using commercial software Hypermesh, and the dynamic finite element simulation was conducted using LS-DYNA 3D/explicit code. Influences of the train speed, flat length and axle load on the vertical wheel-...
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Online Access: | http://link.springer.com/article/10.1007/s40534-017-0131-0 |
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doaj-192a1163248f4b63b87b6c7e0bad6e232020-12-02T14:17:22ZengSpringerOpenJournal of Modern Transportation2095-087X2196-05772017-05-0125212413110.1007/s40534-017-0131-0A dynamic simulation of the wheel–rail impact caused by a wheel flat using a 3-D rolling contact modelLiangliang Han0Lin Jing1Kai Liu2State Key Laboratory of Traction Power, Southwest Jiaotong UniversityState Key Laboratory of Traction Power, Southwest Jiaotong UniversityState Key Laboratory of Traction Power, Southwest Jiaotong UniversityAbstract A three-dimensional (3-D) wheel-rail rolling contact model with a wheel flat was built using commercial software Hypermesh, and the dynamic finite element simulation was conducted using LS-DYNA 3D/explicit code. Influences of the train speed, flat length and axle load on the vertical wheel-rail impact response were discussed, respectively. The results show that the maximum vertical wheel-rail impact force induced by the wheel flat is higher than that generated by the perfect wheel, and these two dynamic impact forces are much greater than the static axle load. Besides, the maximum von Mises equivalent stress and maximum equivalent plastic strain are observed on the wheel-rail contact surface, and both of them as well as the maximum wheel-rail impact force are sensitive to train speed, flat length and axle load.http://link.springer.com/article/10.1007/s40534-017-0131-0High-speed trainWheel–rail impactWheel flatFE simulation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Liangliang Han Lin Jing Kai Liu |
spellingShingle |
Liangliang Han Lin Jing Kai Liu A dynamic simulation of the wheel–rail impact caused by a wheel flat using a 3-D rolling contact model Journal of Modern Transportation High-speed train Wheel–rail impact Wheel flat FE simulation |
author_facet |
Liangliang Han Lin Jing Kai Liu |
author_sort |
Liangliang Han |
title |
A dynamic simulation of the wheel–rail impact caused by a wheel flat using a 3-D rolling contact model |
title_short |
A dynamic simulation of the wheel–rail impact caused by a wheel flat using a 3-D rolling contact model |
title_full |
A dynamic simulation of the wheel–rail impact caused by a wheel flat using a 3-D rolling contact model |
title_fullStr |
A dynamic simulation of the wheel–rail impact caused by a wheel flat using a 3-D rolling contact model |
title_full_unstemmed |
A dynamic simulation of the wheel–rail impact caused by a wheel flat using a 3-D rolling contact model |
title_sort |
dynamic simulation of the wheel–rail impact caused by a wheel flat using a 3-d rolling contact model |
publisher |
SpringerOpen |
series |
Journal of Modern Transportation |
issn |
2095-087X 2196-0577 |
publishDate |
2017-05-01 |
description |
Abstract A three-dimensional (3-D) wheel-rail rolling contact model with a wheel flat was built using commercial software Hypermesh, and the dynamic finite element simulation was conducted using LS-DYNA 3D/explicit code. Influences of the train speed, flat length and axle load on the vertical wheel-rail impact response were discussed, respectively. The results show that the maximum vertical wheel-rail impact force induced by the wheel flat is higher than that generated by the perfect wheel, and these two dynamic impact forces are much greater than the static axle load. Besides, the maximum von Mises equivalent stress and maximum equivalent plastic strain are observed on the wheel-rail contact surface, and both of them as well as the maximum wheel-rail impact force are sensitive to train speed, flat length and axle load. |
topic |
High-speed train Wheel–rail impact Wheel flat FE simulation |
url |
http://link.springer.com/article/10.1007/s40534-017-0131-0 |
work_keys_str_mv |
AT lianglianghan adynamicsimulationofthewheelrailimpactcausedbyawheelflatusinga3drollingcontactmodel AT linjing adynamicsimulationofthewheelrailimpactcausedbyawheelflatusinga3drollingcontactmodel AT kailiu adynamicsimulationofthewheelrailimpactcausedbyawheelflatusinga3drollingcontactmodel AT lianglianghan dynamicsimulationofthewheelrailimpactcausedbyawheelflatusinga3drollingcontactmodel AT linjing dynamicsimulationofthewheelrailimpactcausedbyawheelflatusinga3drollingcontactmodel AT kailiu dynamicsimulationofthewheelrailimpactcausedbyawheelflatusinga3drollingcontactmodel |
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1724405839973842944 |