400 km/h高速铁路车辆曲线通过安全性能分析-《高速铁路技术》

文章信息/Info

Title:: Safety Analysis of 400 km/h High-speed Railway Vehicles Passing Curves

作者:: 高建敏; 梁浩; 杨吉忠; 凌亮; 1. 西南交通大学牵引动力国家重点实验室, 成都 610031;
2. 中铁二院工程集团有限责任公司, 成都 610031

Author(s):: GAO Jianmin; LIANG Hao; YANG Jizhong; LING Liang; 1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China;
2. China Railway Eryuan Engineering Group Co., Ltd., Chengdu 610031, China

Keywords:: 400 km/h high-speed railway|second Chengdu-Chongqing High-speed Railway|high-speed vehicle|curve passing safety|line parameters

摘要:: 文章基于CR400型动车组车辆结构参数和成渝中线线路设计参数，建立了考虑车辆牵引与制动特性的高速铁路车辆-线路耦合动力学模型，对400 km/h高速铁路车辆限速通过曲线时的动力学性能进行了分析。研究结果表明：（1）CR400型动车组在成渝中线正线区间上运行时，安全性指标均低于限值，适当的欠超高设计更有利于提升车辆曲线通过安全性；（2）车辆在成渝中线进出站区间运行时，运行速度对列车通过小半径曲线的安全性有显著影响，应对小半径曲线通过设置速度限制；（3）车辆惰行通过曲线可以明显降低部分安全性指标，改善动车组车辆曲线通过性能。研究结果可为成渝中线高速铁路线路规划设计提供理论参考。

Abstract:: Based on the structure parameters of CR400 EMU vehicles and the route design parameters of the Second Chengdu-Chongqing High-speed Railway, we established the vehicle-track coupling dynamics model considering the vehicle traction and braking characteristics of the high-speed railway and analyzed the dynamics performance of 400 km/h high-speed vehicles passing curves at a limited speed. The results indicate that:(1) When CR400 EMU run on the main line of the Second Chengdu-Chongqing High-speed Railway, all safety indicators are lower than the limits, and the appropriate deficient superelevation design can better improve the curve negotiation performance. (2) When a vehicle is running in the arrival-departure section of the Second Chengdu-Chongqing High-speed Railway, the operation speed has a significant impact on the safety of the train passing small radius curves, so a speed limit shall be imposed for trains passing such curves. (3) For vehicles coasting through the curve, some safety indicators can be significantly reduced and the curve passing performance can be improved. The research results can provide reference for the planning and design of the Second Chengdu-Chongqing High-speed Railway.