中国铁道科学2017，Vol.38Issue(6)：30-36,7.DOI:10.3969/j.issn.1001-4632.2017.06.05
动车组侧向通过9号道岔动力特性仿真研究
Simulation Research on Dynamic Characteristics of EMU Passing through No.9 Turnout
摘要
Abstract
The coupling dynamics model of vehicle and turnout was established by using railway wheel-rail dynamics simulation software.Simulation analyses were carried out on the running safety and wear conditions of CRH5 EMU passing through No.9 turnout of 50 kg · m-1 rail.Technical measures to improve the safety and wheel-rail wear of high speed EMU passing through small number turnout were researched and put forward.Results showed that the peak values of derailment coefficient and axle transverse force reached 0.52 and 28 kN respectively when CRH5 EMU passing through No.9 turnout without considering the random irregularity of the test field,and these peak values maintained at a higher level.The side wear power was also larger,it exceeded the vertical wear power of wheel and rail as a whole,indicating that the side wear was the main cause for the wheel and rail wear when EMU passing through turnout.It was recommended to strengthen turnout maintenance and repair work,and to eliminate timely the track geometry out of gauge.In addition,increasing the lateral stiffness of vehicle primary suspension or adopting No.9 turnout of 60 kg · m-1 rail can effectively reduce the vertical wear and side wear of wheel and rail,and mitigate wheel and rail wear.The latter can greatly improve the safety of EMU passing through turnout.关键词
动车组/侧向通过/小号码道岔/动力特性/轮轨磨耗/仿真分析Key words
Electric multiple unit/Passing through side switch/Small number turnout/Dynamic characteristics/Wheel-rail wear/Simulation analysis分类
交通工程引用本文复制引用
李浩,赵国堂,孙加林..动车组侧向通过9号道岔动力特性仿真研究[J].中国铁道科学,2017,38(6):30-36,7.基金项目
中国铁路总公司科技研究开发计划项目(Z2015-G002) （Z2015-G002）
