长大坡道列车限速的制动盘热效应分析  

Analysis on the thermal effect of brake disc for train speed limit on long ramp

作　　者：卓远嬴 吴兵 姚林泉 沈铨 肖广文 Zhuo Yuanying;Wu Bing;Yao Linquan;Shen Quan;Xiao Guangwen(School of Rail Transportation,Soochow University,Jiangsu Suzhou,215131,China;School of Mathematical Sciences,Soochow University,Jiangsu Suzhou,215006,China)

机构地区：[1]苏州大学轨道交通学院,江苏苏州215131 [2]苏州大学数学科学学院,江苏苏州215006

出　　处：《机械设计与制造工程》2025年第2期115-120,共6页Machine Design and Manufacturing Engineering

基　　金：国家自然科学基金(51605318)。

摘　　要：为了分析列车电制动系统异常时,制动盘热效应对高速列车在长大坡道上限速运行的影响,将列车制动盘的二维热负荷模型集成到列车/轨道耦合动力学模型中,并以动力学模型中的制动力作为制动盘数值模型的能量输入,采用重心有理插值配点法(BRICM)对制动盘数值模型进行求解,获得了列车在25‰坡道上以不同速度、不同制动策略和不同工况运行时制动盘的温度场。结果表明,当列车在坡道上以200~300 km/h的恒定速度运行时,尽管速度越高,制动盘的温度越低,但仍应限制列车的运行速度,以降低制动过程中制动盘的温度。根据热计算,建议列车在坡度为25‰的坡道上以200~250 km/h的速度运行。When the electric braking system of the train is abnormal,the stability of the brake disc friction pair is critical to the safety of the train.The purpose of this paper is to put forward some reasonable suggestions for speed limit operation of high-speed trains on long and long ramps based on the thermal analysis of brake discs.The two-dimensional thermal load model of the train brake disc is integrated into the train/track coupling dynamics model,and the braking force in the dynamics model is used as the energy input of the brake disc numerical model,and the barycentric rational interpolation collocation method(BRICM)is used to solve the brake disc numerical model.The temperature field of the brake disc is obtained when the train is running on a 25‰ramp at different speeds,different braking strategies and different working conditions.The results show that when the train is running at a constant speed of 200~300 km/h on the ramp,the higher the speed is,the lower the temperature of the brake disc is.The train speed should be limited to reduce the temperature of the brake disc during braking.According to the thermal calculation,it is recommended that the train run at the speed of 200~250 km/h on the slope of 25‰.

关 键 词：高速列车 制动盘 长大坡道 温度 限速 

分 类 号：U271.91[机械工程—车辆工程]