提速道岔动力学特性分析

The Analysis on the Dynamic Characteristics of Switch for Speed Raising

道岔是铁路提速的关键限制因素之一,铺设可动心轨式辙叉型提速道岔及进行提速道岔无缝化改造,可根本上消除由于道岔有害空间和钢轨接头所引起的振动冲击,本文对提速道岔动力学特性进行分析,针对提速道岔的特点,提出了在养护工作中必须重视的问题。

Switch is one of the most constraint in speed raising for railways. By laying movable frog switch and seamless switch for speed raising, it will ultimately eliminate failure caused by switch and the impact caused by the vibration between the connection of the rail ends. This article analyses the dynamic characteristics of the switch for speed raising and points out the issues, which must be highlighted during the maintenance.