应用空电联合制动的重载列车缓解性能  

Release Performance of Heavy-Hual Train Based on Electric-Pneumatic Blend Braking

作　　者：杨敏 王开云[1] 史智勇[1] 閤鑫 周义昌 

机构地区：[1]西南交通大学牵引动力国家重点实验室,成都610031

出　　处：《重庆理工大学学报（自然科学）》2017年第10期84-89,共6页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金资助项目(51478399)

摘　　要：基于列车纵向动力学理论,研究了空电联合制动模式下列车编组、坡道坡度、电阻制动系数及缓解速度对列车在长大下坡道调速制动时缓解性能的影响。与单独空气制动模式进行了对比,分析了2种制动模式下列车实施循环制动的次数与最大车钩力的差异。研究结果表明:电阻制动系数越高,列车缓解性能越优;列车缓解性能随列车编组数量、坡道坡度与缓解速度的增加而变差;空电联合制动时,列车实施循环制动的次数与最大车钩力均小于单独空气制动时。Based on the theory of train longitudinal dynamics,the influence of train marshalling,slope gradient,resistance braking coefficient and release speed on release performance was analyzed under the mode of electric-pneumatic blend braking,during the speed adjustment braking of train on long down slope. A comparison was made between electric-pneumatic blend braking model and air braking model. The difference of numbers of cycle braking and maximum coupler force of train was illustrated under the two modes. Results indicate that the higher the resistance braking coefficient,the better the release performance is. The release performance declines with the increases of train marshalling,slope gradient and release speed. The numbers of cycle braking and maximum coupler force of the electric-pneumatic blend braking are less than air braking.

关 键 词：列车纵向动力学 长大下坡道 空电联合制动 缓解时间 缓解性能 

分 类 号：U260.35[机械工程—车辆工程]