Journal
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART F-JOURNAL OF RAIL AND RAPID TRANSIT
Volume 236, Issue 6, Pages 672-683Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/09544097211034712
Keywords
Railroad vehicle dynamics; wheel-rail contact; profile optimization; wear; surface fatigue; multibody dynamics
Ask authors/readers for more resources
This study developed a wheel profile optimization procedure to minimize flange wear while considering wear evolution. Experimental validation showed that the optimized profile can reduce both flange wear and tread surface damage simultaneously over an extended traveling distance.
This study aims to develop a wheel profile optimization procedure to minimize flange wear considering the wear evolution. To this end, the wheel wear simulation capability is integrated into the profile optimization framework such that a total material loss can be minimized under design constraints. This allows for the wear reduction to be maintained over an extended traveling distance, while an optimized profile, minimizing the frictional energy for only the initial profile, would not ensure the optimum performance after the profile wear becomes significant. Furthermore, to enable a balanced mitigation of the profile wear and surface damage, the damage index model is introduced to the weighted objective function, considering profile wear evolution. Using flange wear tests with a scaled roller test rig, wear reduction of the optimized profile is experimentally validated. The wear simulation results agree with the test data. It is demonstrated that the flange wear and tread surface damages are reduced simultaneously over an extended traveling distance using the profile optimization procedure developed in this study.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available