摘要
现有的城市轨道交通标准中并未对第三轨供电系统受流性能的评价有系统和明确的规定。以无锡地铁2号线测试数据为依托,分析了在列车运行的情况下受流器和第三轨之间的接触压力,以及动应力变化对受流的影响;阐述了影响受流质量的主要因素;确定了受流质量的评价指标,包括接触压力算术平均值、接触压力标准差、接触压力不均匀系数、离线率、单次离线持续时间、端部弯头冲击过程中弱连接处的动态应力幅值,并给出了各指标的评价方法。
The current urban rail transit standard hasn′t clarified systematic specifications about third-rail power supply system current-collecting performance evaluation.Taking Wuxi Metro Line 2 test data as basis,how the contact pressure,dynamic stress between current-collector and third-rail affects current-collecting during operation is analyzed.The main factors influencing current-collecting quality are sorted.Evaluation indicators of current-collecting quality is identified,including arithmetic mean of contact pressure,standard deviation of contact pressure,contact pressure non-uniformity coefficient,offline rate,single off-line duration,the amplitude of dynamic stress at bend end weak junctions.The evaluation methods of each indicator are given.
作者
戈春珍
刘艳丰
宁晓芳
GE Chunzhen;LIU Yanfeng;NING Xiaofang(China Railway Materials Operation and Maintenance Technology Co.,Ltd.,100036,Beijing,China;不详)
出处
《城市轨道交通研究》
北大核心
2022年第6期37-42,共6页
Urban Mass Transit
基金
中国民用航空局人事科教司重大专项课题(201501)。
关键词
城市轨道交通
第三轨供电系统
受流质量
评价指标
urban rail transit
third-rail power supply system
current-collecting quality
evaluation indicator
