2万吨重载组合列车操纵优化研究  

Operating Optimization Study of 20,000-Ton Heavy Haul Combined Train

作　　者：魏伟[1] 张益铭 WEI Wei;ZHANG Yiming(School of Locomotive and Rolling-stock Engineering,Dalian Jiaotong University,Dalian 116028 Liaoning,China)

机构地区：[1]大连交通大学机车车辆工程学院,辽宁大连116028

出　　处：《铁道机车车辆》2021年第4期35-40,共6页Railway Locomotive & Car

摘　　要：2万t列车在运行过程中会出现缓解时车钩力较大等问题。以某重载线路长大坡道为例,使用列车空气制动与纵向动力学联合仿真系统,将原来循环制动的四把闸优化到两把闸通过。仿真计算表明,易产生较大车钩力的地点可避开,最大拉钩力和压钩力分别可减小32.1%和11.4%。基于此种操纵优化方法,对两把闸操纵过程中可能出现的机车自动制动机减压量显示准确度问题、制动减压量准确度问题、机车自动制动机评价指标问题和最小列车管减压量提出了要求。In the process of 20,000-ton train operation,some problems happened such as coupler force became larger at the train in released status.Taking a long ramp of a heavy haul line as an example,the combined simulation system of train air braking and longitudinal dynamics(TABLDSS)is used,and the four times of the original cycle air braking are optimized to two times.The simulation results show that the location where the larger coupler force occur can be avoided easily,and the maximum tensile and compressing coupler force can be reduced by 32.1%and 11.4%separately.The precondition for the realization of this optimal control method is to improve the display precision of the locomotive automatic braking system,the brake pipe reduction accuracy of the braking system and the minimum reduction amount of the locomotive braking system.

关 键 词：重载列车 操纵优化 车钩力 制动减压量 

分 类 号：U292.921[交通运输工程—交通运输规划与管理]