车钩间隙对重载列车牵引启动纵向冲动的影响  

Effect of the Coupler Clearance on Longitudinal Impulse of Heavy Haul Trains in Traction and Starting

作　　者：刘华伟 王自力[2] 

机构地区：[1]中国神华神朔铁路分公司,陕西榆林719000 [2]西南交通大学牵引动力国家重点实验室,四川成都610031

出　　处：《铁道车辆》2018年第6期7-9,共3页Rolling Stock

摘　　要：采用列车纵向动力学仿真程序计算分析了重载列车牵引启动时不同车钩初始状态对列车纵向冲动的影响。计算结果表明,重载列车牵引启动时,减小列车纵向冲动最有利的车钩初始状态为拉钩状态;对于启动困难区段,如限制坡道上启动时,可采用压钩启动方式,以提高列车在限制坡道启动的成功率。The longitudinal dynamics simulation program for trains is used to calculate and analyze the effect of different initial states of couplers on the longitudinal impulse of heavy haul trains in traction and starting.The calculation result shows that the most favorable initial state of the coupler to reduce the longitudinal impulse of the train is the pulling state of the coupler.In the difficult sections of starting,e.g.starting on a restricted slope,the coupler-pressed starting method can be applied to improve the success rate of starting the train on a restricted slope.

关 键 词：重载列车 车钩间隙 纵向冲动 启动 

分 类 号：U270.34[机械工程—车辆工程]