- ISSN 0258-2724
- CN 51-1277/U
- EI Compendex
- Scopus
- Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
- Chinese S&T Journal Citation Reports
- Chinese Science Citation Database
| Citation: | ZHANG Lei, ZHENG Jie, ZHAO Yafei, SUN Yuanbo, LI Pengfei. Optimization of Wheelset Tread for High-Speed Trains Considering Curve Passing Performance of LMA/CHN60N Wheel-Track[J]. Journal of Southwest Jiaotong University. doi: 10.3969/j.issn.0258-2724.20250186
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To improve the passing performance of high-speed trains on curved sections, reduce wheelset wear, and extend service life, the LMA/CHN60N wheel-track combination was taken as the research object. Six dimensions of the wheel tread in close contact with the track when the train passes through the curved track section were set as design variables, and the maximum lateral displacement, maximum climb, and maximum contact stress between the wheel and track on both sides were defined as objective functions. The response surface optimization design of the wheel tread dimensions was conducted, and the transient dynamics analysis of the optimization scheme was performed. The results indicate that compared with existing wheelsets of high-speed trains, the maximum lateral displacement, maximum climb, and maximum contact stress of the optimized outer wheels decrease by 1.74%, 1.34%, and 4.49%, respectively, and the maximum lateral displacement, maximum climb, and maximum contact stress of the inner wheels decrease by 0.41%, 1.53%, and 3.92%, respectively. Under the premise of ensuring other performances of the train, the optimization scheme improves the passing performance of the vehicle on curved track sections and can reduce wheelset wear; moreover, the indicators of straight passing performance, safety, smoothness, and durability are all within allowable ranges, thereby extending its service life.
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