摘要
我国高速铁路发展迅速,未来其运行速度将达到400 km/h及以上。针对更高速铁路中弓网受流质量变化,首先研究Cu-Al_(2)O_(3)弥散铜接触线材质性能,然后采用受电弓的三元集中质量块单元和弹性链型悬挂接触网的接触单元,建立弓网耦合动力学模型并借助ANSYS有限元分析软件进行仿真,分析弓网系统在350,380,400和420 km/h 4种速度下受流情况。研究结果表明:使用张力为34 kN时,满足冲击载荷及静载荷条件下的使用安全性,随着列车运行速度增加动态接触压力变化幅度明显增大,其中最大动态接触压力、最小动态接触压力、平均动态接触压力及标准偏差基本满足《高速铁路工程动态验收技术规范》中弓网受流质量评价标准。
Chinese high-speed railway is developing rapidly and its speed will reach 400 km/h or higher in the future.The study aimed at the change of the current collecting quality of pantograph-catenary in higher-speed railway,First,we analyze the material properties of Cu-Al_(2)O_(3) dispersion copper contact wire were analyzed Using the ternary concentrated mass element of the pantograph and the contact element of the elastic chain suspension catenary to establish a pantograph-catenary dynamic model,Then,finite element analysis softwareANSYS was used to analyze the quality of current collection at four speeds of 350,380,400 and 420 km/h.The results are as follows.When the tension is 34 kN,it meets the safety of impact load and static load,the amplitude of the dynamic contact pressure changes significantly with the increase of the train running speed.The pantograph speed comes to peak when it reaches the center of the catenary span.At the junction of the spans,the fluctuate amplitude of the catenary contact pressure becomes larger,the minimum dynamic contact pressure,the average dynamic contact pressure and the standard deviation basically meet the assessment standards for current collecting quality of pantograph-catenary in the Technical Specification for High-Speed Railway Engineering Dynamic Acceptance.
作者
汤文亮
马浩航
袁远
刘仕兵
喻卓成
TANG Wenliang;MA Haohang;YUAN Yuan;LIU Shibing;YU Zhuocheng(School of Information Engineering,East China Jiaotong University,Nanchang 330013,China;China Academy of Railway Sciences Group Co.,Ltd.,Beijing 100083,China;School of Electrical engineering,East China Jiaotong University,Nanchang 330013,China)
出处
《铁道科学与工程学报》
CAS
CSCD
北大核心
2021年第5期1098-1104,共7页
Journal of Railway Science and Engineering
基金
江西省重点研发计划资助项目(20171BBH80005,20192ACB50027)
江西省教育厅研发计划资助项目(GJJ190296)
江西省科技厅研发计划资助项目(HX2019-322)。
