在地铁开通初期,很多项目发生了严重的空压机油乳化问题,对空压机的正常使用及维护工作带来影响.以南京地铁宁高城际项目为例,系统性设计空压机油乳化的解决方案,并在运营后对多种方案进行计算和试验,研究地铁车辆空压机油乳化的有效解决方案.

轮轨可用粘着随列车运行速度提高而降低,地铁列车恒制动力控制方法在市域快速轨道交通线或城际线路上会因高速段粘着的降低带来滑行的风险.南京宁高城际项目S9线列车编组为3辆B型车,最高运营速度为120 km/h,全线为高架线路且上跨13 km宽的石臼湖面,轮轨间实际可用粘着较低.通过对S9线的粘着计算和电制动能力分析,提出分段制动力控制方法,用以降低对高速段的粘着需求.该方法能够减少列车高速段发生滑行带来的制动距离超标及轮对擦伤等安全风险,同时能够充分利用电制动减少列车闸片磨耗.

国内很多城市地铁都开始了城际线路(市域快线)的建设,具有编组短、速度高及线路条件复杂多变等特点,易发生由于车辆滑行造成的轮对擦伤及列车冲标等安全问题.从避免滑行、控制滑行及改善滑行等角度,探讨城际线路列车减少滑行的多种措施,并以南京地铁宁高城际项目 S9 线为例对措施的有效性和可实施性进行分析,研究减少滑行的可选择方案.

低地板车辆紧急制动时减速度要求达到2.8 m/s2,即使考虑到不依靠轮轨黏着的磁轨制动,车辆对轮轨间的黏着要求也很高,正常轮轨条件下很难保证车辆不发生滑行.低地板车辆在坡道60％.的线路上运行,牵引时同样存在空转风险.车辆设计时必须配置撤砂装置,通过对轨道喷砂增加轮轨间的黏着,以减少车辆运行时的空转和滑行.

The bus network control systems are widely used in subway cars and high-speed trains,and have gradually replaced the traditional train control system with nodes.This article describes the network control system of Shanghai Metro Line 13,and analyzes of the technical characteristics of the network control system,including network topology,MVB-M TCN bus technology and system design.

The wire arrangement in subway train is not only related to the maintenance of the vehicle later,and also an influence factor on the normal operation of the train.With the gradual mature of the functional design of the train,the wire arrangement in the train,especially the wire arrangement in the train chassis gaines concerns from both the vehicle owners and designers.Around the degree of modularization in wire arrangement in chassis,the authors explain the the design scheme and concepts of wire arrangement in train chassis,compare and research different schemes,look forward to the direction of the wire arrangement design in chassis in the future.