小减压量下制动力差异对重载列车纵向力影响研究  

Study on the Impact of Braking Force Difference on Longitudinal Force of Heavy Haul Train Under Smaller Pressure Reduction

作　　者：李巧银 林小杰 谢磊 张杰 LI Qiaoyin;LIN Xiaojie;XIE Lei;ZHANG Jie(Meishan CRRC Brake Science&Technology Co.,Ltd.,Meishan 620010,China)

机构地区：[1]眉山中车制动科技股份有限公司,四川眉山620010

出　　处：《铁道车辆》2024年第5期164-168,共5页Rolling Stock

摘　　要：为研究制动力差异对重载列车纵向力的影响,分析了车辆制动力影响因素及车辆间制动力差异的原因。以C 80B型车辆为例,分析了各影响因素的波动范围,仿真计算了不同大小制动力在不同分布工况下的车钩力。结果表明:与制动力均布且均处于平均值为对比,车辆制动力在差异范围内随机分布对列车纵向力影响小;列车以车辆制动力差异分为n部(n≥2),n越小,列车纵向力越大,制动力差异越大,列车纵向力越大。In order to study the impact of braking force difference on the longitudinal force of heavy haul train,this article analyzes the influencing factors of braking forces of vehicles and the causes for braking force difference between vehicles.Taking C 80B car for example,the fluctuating range of influencing factors are analyzed and the coupler forces corresponding to different braking forces in difference distribution cases are simulated and calculated.According to the calculation result,compared with the uniform distribution of braking forces in average value,the random distribution of braking forces of vehicles within the difference range has smaller impact on the longitudinal force of train;if the train is divided into n parts(n≥2)according to the difference of braking forces of vehicles,the smaller the n is,the greater the longitudinal force of train is,while the larger the braking force difference is,the greater the longitudinal force of train is.

关 键 词：重载列车 纵向力 制动力分布 制动力差异 小减压量 仿真计算 

分 类 号：U272[机械工程—车辆工程]