基于运动病诱发率的400 km/h高速铁路线路参数适应性分析  

Adaptability Analysis of 400 km/h High-speed Railway Line Parameters Based on Motion Sickness Incidence

作　　者：时瑾[1] 徐平 刘星宇[1] SHI Jin;XU Ping;LIU Xingyu(Beijing Jiaotong University,Beijing100044,China;China Railway Eryuan Engineering Group Co.,Ltd.,Chengdu610031,China)

机构地区：[1]北京交通大学,北京100044 [2]中铁二院工程集团有限责任公司,成都610031

出　　处：《高速铁路技术》2021年第2期17-22,共6页High Speed Railway Technology

基　　金：中铁二院工程集团有限责任公司科技发展计划项目(KSNQ202051)。

摘　　要：针对400 km/h高速铁路线路设计需求,本文以高速铁路车线动力学方法为基础,引入运动病诱发率(Motion Sickness Incidence,简称MSI)作为舒适性评价指标,参考运动病诱发率预测模型,提出适用于线性分析的运动病诱发率预测方法,并对某高速铁路线路设计参数与速度匹配适应性进行了分析研究。结果表明:(1)MSI能很好地反应乘客在运动环境中的舒适性;(2)线路里程和曲线段数相同时,MSI随曲线半径的增大而减小;MSI相同时,大半径曲线能相对延长线路里程,增加曲线段数;(3)MSI曲线斜率能反映单个曲线对乘客舒适性的影响规律;(4)12000 m曲线半径及其匹配的超高、缓和曲线长度等与400 km/h行车速度的适应性良好,且可进一步提速至450 km/h乃至更高速度。Based on the design requirements of 400 km/h high-speed railway projects in China,we introduced motion sickness incidence(MSI)as the comfort evaluation indicator with the vehicle-track dynamic method of high-speed railway,proposed an MSI prediction method applicable to linear analysis by referring to the MSI prediction model,and analyzed the design parameters and speed matching adaptability of a certain high-speed railway.The results show that:(1)MSI can properly reflect the comfort of passengers in the motion environment.(2)Given the same line length and number of curve segments,MSI decreases as the curve radius increases;when MSI is the same,and for the curve with a larger radius,the line length can be relatively extended and the number of curve segments can be increased.(3)The slope of the MSI curve can reflect the rule that how a single curve affects the passenger comfort.(4)The 12000 m curve radius and the length of the superelevation and transition curves matching the radius have good adaptability with the 400km/h speed,which can be further raised to 450 km/h or even higher.

关 键 词：时速400 km/h高速铁路 运动病诱发率 预测分析模型 线路设计参数 适应性 

分 类 号：U212.332.1[交通运输工程—道路与铁道工程]