400 km/h高速铁路轨道几何不平顺敏感波长分析-《高速铁路技术》

文章信息/Info

Title:: Sensitive Wavelength Analysis on Track Geometric Irregularities of 400 km/h High-speed Railway

作者:: 杨吉忠; 谢毅; 庞玲; 姜培斌; 凌亮; 1. 中铁二院工程集团有限责任公司, 成都 610031;
2. 西南交通大学, 成都 610031

Author(s):: YANG Jizhong; XIE Yi; PANG Ling; JIANG Peibin; LING Liang; 1. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China;
2. Southwest Jiaotong University, Chengdu 610031, China

Keywords:: 400 km/h high-speed railway|vehicle-track coupling dynamics|track geometric irregularities|sensitive wavelength|high-speed EMU

摘要:: 本文基于车辆-轨道耦合动力学理论，建立了考虑柔性车体的高速列车-轨道耦合动力学模型，对比分析了轨道几何不平顺波长变化对典型高速动车组动力学性能的影响规律，探讨了400 km/h行车速度条件下高速铁路轨道几何不平顺的敏感波长。结果表明：（1）400 km/h高速铁路轨道几何不平顺敏感波长主要存在两个范围，短波范围的敏感波长主要与动车组车体的柔性模态有关，中长波范围的敏感波长主要与动车组车辆系统的刚体模态有关；（2）由于悬挂参数的差异，不同型号高速动车组对应的轨道几何不平顺敏感波长存在明显差异，在制定线路养护维修标准时，应考虑整条线路上所有运营的动车组型号；（3）不同类型轨道几何不平顺的敏感波长也存在差异，应针对不同的轨道几何不平顺类型制定相应的敏感波长管理标准。

Abstract:: In this paper, we established a high-speed train-track coupling dynamics model considering flexible vehicle bodies based on the theory of vehicle-track coupling dynamics, studied the influence of track geometric irregularities on the dynamics performance for different types of high-speed trains, and discussed the sensitive wavelengths of track geometric irregularities on 400 km/h high-speed railway. The results show that:(1) There are two ranges of sensitive wavelengths for track geometric irregularities of 400km/h high-speed railway, where the sensitive wavelengths of the short-wave range are mainly related to the flexible mode of the EMU car-body, and the sensitive wavelengths of the medium and long-wave ranges are mainly related to the rigid mode of the EMU vehicle system. (2) Due to the difference in suspension parameters, high-speed trains of different models are much different in the sensitive wavelengths for the same type of track geometric irregularities. All types of high-speed trains operating on the same line shall be considered when maintenance rules are developed. (3) The sensitive wavelengths vary with types of track geometric irregularities. Thus, proper management criteria of sensitive wavelengths shall be developed based on different types of track geometric irregularities.