Abstract
Based on the finite element analysis software ANSYS/LS-DYNA, this paper established a three-dimensional finite element model of wheel/rail rolling contact with consideration of the actual geometrical shape and boundary conditions. The effects of the axle load, friction coefficient and wheel-rail relative lateral displacement on the contact zone and contact pressure were examined. The results showed that a higher axle load would enlarge the stick region and decrease absolute creepage value, and frictional coefficient could improve the adhesive performance and decrease the creep rate linearly. As the wheel-rail relative lateral displacement increased, the two point wheel-rail contacts may occured. Furthermore, the matching performance of Chinese common wheel-rail profiles were also studied in this paper. The results obtained showed that the LMa worn-type tread has a good matching performance compared with conical-tread and the LM worn-type tread, and with the LMa worn-type tread some measures should be taken to improve the adhesive performance of carriage wheels.
| Original language | English |
|---|---|
| Journal | Civil-Comp Proceedings |
| Volume | 110 |
| State | Published - 2016 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© Civil-Comp Press, 2016.
Keywords
- Contact stress
- Elastic-plastic analysis
- Matching performance
- Wheel-rail dynamic contact
ASJC Scopus subject areas
- Environmental Engineering
- Civil and Structural Engineering
- Computational Theory and Mathematics
- Artificial Intelligence