摘要
为了研究时速400 km高速列车的动力学性能,建立了多体系统车辆动力学模型.通过数值仿真分析,对新轮和磨耗轮状态下的车辆动力学性能进行了研究和比较.结果表明:车辆运行稳定性方面:新轮状态下,中间车辆的构架横向加速度相较于头尾车辆减小21%;磨耗轮状态下,中间车辆的构架横向加速度相较于头尾车辆减小35%.运行安全性方面:中间车辆的轮轨垂向力比头尾车辆增大13%;相较于新轮状态,磨耗轮状态下的轮轨横向力增大41%.在所有的仿真分析计算当中,车辆动力学性能指标均满足相关标准要求,证明了时速400 km动车组的设计是合理的.
In order to study the dynamics performance of a 400 km/h high-speed train,a nonlinear dynamics model of multi-body rail train systems composed of three vehicles is established,and the dynamic performance of the vehicles under new and worn wheel/rail interactions are examined and compared through numerical analysis.It shows that the lateral acceleration on the middle vehicle is 21%smaller than that of the head and the tail vehicles under a new tread condition.In the case of wheel wear,the lateral acceleration on the middle vehicle is 35%smaller than that of the head and the tail vehicles,and the vertical wheel/rail force of the middle vehicle is 13%larger than that of the head and the tail vehicles.The lateral wheelset force under the worn wheel case is 41%greater than that under the new wheel condition.In all numerical cases,the vehicle dynamics indexes meet the required limits,which proves that the 400 km/h high-speed train is properly designed.
作者
王淇
崔涛
丁学彬
朱宝
张良泉
WANG Qi;CUI Tao;DING Xuebing;ZHU Bao;ZHANG Liangquan(CRRC Tangshan CO.,Ltd,Tangshan 063000,China)
出处
《大连交通大学学报》
CAS
2021年第1期20-24,共5页
Journal of Dalian Jiaotong University
基金
国家重点研发计划资助项目(2018YFB1201702)。
关键词
高速动车组
车轮偏磨
转向架
动力学
high-speed railway
wheel deflected wear
bogie
dynamics
