维普中文期刊产品整合服务

Wheel Profile Optimization of Speed-up Freight Train Based on Multi-population Genetic Algorithm

查看全文 作　　者：Dabin [1]CUI;Pengcheng [1]LEI;Xing [1]ZHANG;Jingkang [1]PENG 高影响力作者 机构地区：[1]School of Mechanical Engineering,Southwest Jiaotong University,Chengdu,China高影响力机构 出　　处：《Mechanical Engineering Science》索引2021年第3卷第1期,共11页高影响力期刊 基　　金：The present work was supported by Sichuan Science and Technology Program(2020YJ0308 and 2021YJ0026). 摘　　要：The geometric shape of the wheel tread is mathematically expressed,and geometric parameters affecting the shape of the wheel were extracted as design variables.The vehicle dynamics simulation model was established based on the vehicle suspension parameters and track conditions of the actual operation,and the comprehensive dynamic parameters of the vehicle were taken as the design objectives.The matching performance of the wheel equivalent conicity with the vehicle and track parameters was discussed,and the best equivalent conicity was determined as the constraint condition of the optimization problem;a numerical calculation program is written to solve the optimization model based on a multi-population genetic algorithm.The results show that the algorithm has a fast calculation speed and good convergence.Compared with the LM profile,the two optimized profiles effectively reduce the wheelset acceleration and improve the lateral stability of the bogie and vehicle stability during straight running.Due to the optimized profile increases the equivalent conicity under larger lateral displacement of the wheelset,the lateral wheel-rail force,derailment coefficient,wheel load reduction rate,and wear index are reduced when the train passes through the curve line.This paper provides a feasible way to ensure the speed-up operation of a freight train. 关 键 词：Speed-up freight trains Wheel profile optimization Dynamic performance Equivalent conicity
相关文献

参考文献(25)

引证文献(2)

耦合文献(172)

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1　渝公网安备 50019002500403号　违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费