高速铁路接触网弹性吊索松弛条件探讨

Discussion on Relaxation Conditions of Stitch Wire of OCS of High-speed Railway

通过建立时速350 km及以上高速铁路接触网接触悬挂的线性模型和电阻模型,得出了两种模型下的接触悬挂动态抬升量计算式,量化分析了在一定速度下悬挂动态抬升量以及由速度增大引起的弹性吊索及吊弦松弛抬升力的临界值,得出了确定该临界值的两种情况。

Through establishing of the linear model and resistance model of OCS contact suspension of high-speed railway with speed of 350 km/h and above,the calculation formulae for the dynamic lifting amount of contact suspension under two models are obtained.The critical values of the dynamic lifting amount of suspension at a certain speed and the relaxation lifting force of the stitch wire and droppers caused by the speed increase are quantitatively analyzed,and two cases for determining the critical values are obtained accordingly.