The Dynamic Wheel-Rail Contact Stresses for Wagon on Various Tracks
The maximal stress and tangential surface forces at the wheel-rail contact elliptic area are affected by the wheel-rail contact dynamic load and creepages. Dynamic wheel load is related to the wagon dynamic system, track and wheel-rail interaction. Creepages are related to the motion of wheelset and...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Elsevier B.V
2008
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| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/3529 |
| Summary: | The maximal stress and tangential surface forces at the wheel-rail contact elliptic area are affected by the wheel-rail contact dynamic load and creepages. Dynamic wheel load is related to the wagon dynamic system, track and wheel-rail interaction. Creepages are related to the motion of wheelset and wheel-rail contact parameters. The paper presents an analysis of the effects of creepages on wheel-rail contact forces. A complete Australia wagon with three-piece bogies was modelled and various tracks were selected for the simulation of dynamic wheel-rail contact stresses. The results show that the maximal normal wheel-rail contact stresses is under 1600 MPa in a range of conditions of typical normal operation. |
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