高速动车组在不同无砟轨道结构上运行的动力学响应分析

摘要

以某型高速动车组在 CRTSⅡ板式无砟轨道和双块式无砟轨道上的直线运行工况为例，基于车辆-轨道耦合动力学理论，分析高速铁路不同轨道结构的轮轨动力学性能之差异。研究结果表明，该型高速动车组在不同无砟轨道结构上运行时均具有良好的安全性和平稳性，动力学响应虽然存在差异，但差异很小。%This article takes the working conditions that a kind of high - speed EMU running on CRTSⅡslab track as well as double - block non - ballasted track along the straight line as examples,the differ-ences that wheel - rail dynamic performance on different high - speed railway track structures are analyzed according to the Vehicle - Track Coupled Dynamics. The research results indicate that this kind of high -speed EMU has superior qualities of safety and stability while running on different non - ballasted track structures. Though there are differences between dynamic responses on different non - ballasted track structures,they are proved to be very small.