400 km/h运行速度下现有接触网系统适应性研究  

Study on the Adaptability of the Existing Overhead Contact System at 400 km/h

作　　者：杨佳[1] 于杰 鲁小兵 张家玮[3] 姚永明 丁润 YANG Jia;YU Jie;LU Xiaobing;ZHANG Jiawei;YAO Yongming;DING Run(China Railway Eryuan Engineering Group Co.Ltd,Chengdu,Sichuan 610031,China;Yangtze River Coastal Railway Group Sichuan Co.Ltd,Chengdu,Sichuan 610031,China;Southwest Jiaotong University,Chengdu,Sichuan 611756,China;China Academy of Railway Sciences Corporation Limited,Beijing 100081,China)

机构地区：[1]中铁二院工程集团有限责任公司,成都610031 [2]长江沿岸铁路集团四川有限公司,成都610031 [3]西南交通大学,成都611756 [4]中国铁道科学研究院集团有限公司,北京100081

出　　处：《铁道工程学报》2025年第2期74-79,共6页Journal of Railway Engineering Society

基　　金：中国国家铁路集团有限公司科技研究开发计划(N2024G018);国家自然科学基金项目(52472421,62473322)。

摘　　要：研究目的:我国已成熟应用并形成350 km/h及以下速度等级的接触网系统及装备技术体系,但尚缺乏400 km/h运行速度下的相关技术标准及工程应用,亟待开展现有接触网系统在400 km/h更高运行速度下的可行性研究,以推进CR450科技创新工程实施。本文结合我国现有典型接触网系统类型,通过弓网动态耦合仿真和高速综合试验数据分析,开展现有接触网系统张力、设施断面、装备在400 km/h运行速度下的适应性研究,并提出下一步研究思路及方向。研究结论:(1)现有接触网系统在400 km/h运行速度时弓网受流质量恶化,动车组升单弓运行时接近标准限值,重联升双弓运行时无法更好适应更高速度的要求;(2)现有接触网系统在400 km/h运行速度时导线、定位、吊弦、弹性吊索、电连接等空间动态位移增加,线索、构件相互间易发生碰撞、磨损,安全风险增大;(3)现有接触网系统在400 km/h运行速度时装备振动疲劳加剧,虽能满足荷载强度需求,但系统及装备的耐久性和稳定性降低,服役寿命大幅缩短;(4)本研究成果可为轨道交通领域高速铁路工程建设及运维提供参考和借鉴。Research purposes:China has maturely applied and formed a technical system for overhead contact systems and equipment at 350 km/h and below,but still lacks relevant technical standards and engineering applications at operating speeds of 400 km/h.It is urgent to study the feasibility of the existing overhead contact system at a higher operating speed of 400 km/h to promote the implementation of the CR450 scientific and technological innovation project.This paper combined with the existing typical overhead contact system types in China,through the dynamic coupling simulation of the bow and catenary and the analysis of high-speed comprehensive test data,the tension,facility section,and equipment of the existing overhead contact system were studied to be more adaptable at a higher operating speed of 400 km/h.It is proposed that the existing overhead contact system cannot meet the operating requirements of a higher speed of 400 km/h,and the next research ideas and directions are proposed.Research conclusions:(1)The existing overhead contact system has deteriorated the current-collecting quality of the catenary at a speed of 400 km/h.When the EMU is running with a single pantograph,it is close to the standard limit.When the EMU is running with double pantographs,it cannot adapt the requirements of higher speeds.(2)When the existing overhead line system runs at a speed of 400 km/h,the spatial dynamic displacement of the conductors,positioning,droppers,elastic suspension cables,electrical connections,etc.increases,and the conductors and components are prone to collision and wear,increasing safety risks.(3)The existing overhead contact system has aggravated equipment vibration fatigue when operating at a speed of 400 km/h.Although it can meet the load strength requirements,the durability and stability of the system and equipment are reduced,and the service life is greatly shortened.(4)The research results can provide a reference for the construction operation and maintenance of high speed railway projects in the field of

关 键 词：400 km/h 接触网 系统参数 装备 适应性 

分 类 号：U225[交通运输工程—道路与铁道工程]