介绍了目前在国内外轨道交通车辆上使用的新型能源系统,主要分为车载储能装置和车载氢能源装置.分析了不同新型能源装置的场景应用,并从特点、性能、经济性、发展方向等方面进行了比较.提出了新型能源商业化存在的问题,并展望了其发展前景.

分析了巴西圣保罗13号线市域车的特点及与我国国内城轨车辆的差异.通过对比分析,提出了加大技术研发投入、掌握核心技术、完善售后服务体系,是轨道交通装备制造业提高国际竞争力、实现"走出去"战略的选择.

车钩作为地铁车辆的重要组成部分,主要包括钩头、缓冲器、压溃管和过载保护装置等,具有连接轨道车辆、传递及缓和列车间栽荷、吸收碰撞能量的作用,文章介绍了车钩主要部件的工作原理,阐述了各部件的设计选择依据.

The tram with suspended carbody adopts modular articulated carbody structure, and each module of the carbody is connected by articulated equipment, so its kinematic envelope calculation cannot directly use the calculation method of subway vehicle with rigid carbody. According to the structure and degree of freedom of movement of the tram with 5 module suspended body, the calculation method of the kinematic envelope of the tram with 5 module suspended body was discussed with reference to the CJJ 96—2003 standard. Based on the relationship between carboy modules and the movement between carbody and bogie, the values of the transverse deflection coefficient, the vertical deflection coefficient and the flexible coefficient of each modular were analyzed and transverse displacement caused by the relative rotation between carboy and bogie was taken into account additionally. The proposed method could be extended to 3 module and 7 module suspended carbody trams and single carbody trams.

The paper introduces the Qingdao Chengyang’s modern trams of permanent magnet direct drive, including vehicle formation and the main technical specifi cations, basic characteristics and the major components and systems such as car-body, bogie, traction system, train control and diagnosis system, auxiliary power supply system, braking system, and it further summarizes the main technical characteristics of permanent magnet direct drive tram.

The invention relates to a low-floor railway vehicle chassis structure which comprises a chassis and a lower hinge mounting seat. The lower hinge mounting seat is fixedly welded to one end of the chassis. The whole low-floor railway vehicle chassis structure is simple and reasonable, the lower hinge mounting seat is designed to be located in one end of the chassis, the end of the chassis is used for overall bearing, and peak force is avoided. When the lower hinge mounting seat is stressed too much, overall bearing of the whole end of the chassis can solve the problem that an independent lower hinge mounting seat is prone to cracking, the effect of improving the strength and rigidity of the lower hinge mounting seat of the hinging structure is achieved, and safe operation of a vehicle is effectively guaranteed.

The design thought of the energy absorption in collision of metro cars is described.The design principle and basis for selection of vairousgrades of energy absorption elements are expounded.