轮轨碰撞系统的分岔与混沌研究

Research on Bifurcation and Chaos of Wheel-rail Collision System

我国目前正处于高速铁路大发展的时期,但是,高速列车发展受到了许多动力学问题的阻碍.列车系统的动力学性能直接影响到列车允许的最高运行速度,其动力学性能的提高,给铁路工作者提出了一系列的研究课题,轮轨碰撞系统的研究就是其中重要的研究课题之一.本文针对高速列车轮轨碰撞系统问题展开深入研究,研究内容主要包括轮轨碰撞模型的建立,运用数值模拟方法研究轮轨碰撞系统的分岔及混沌运动.本文的目的是通过分析轮轨碰撞系统的动力学行为,为我国高速列车的开发研制提供理论基础.

The high-speed railway in our country is in a period of great development.However,it is hindered by many dynamic problems,which directly affect the maximum running speed allowed.And the improvement of dynamic performance puts forward a series of research topics for the railway professionals,among which the wheel-rail collision system is an important one.The wheel-rail collision system of high-speed railway is deeply researched,whose contents include the establishment of wheel-rail collision model,and the bifurcation and chaotic motion of the wheel-rail collision system by the numerical simulation method.The purpose of this article is to provide the theoretical basis for our country to develop the high-speed railway by analyzing the dynamic behavior of the wheel-rail collision system.