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随着列车的提速和对列车自动驾驶的需求,缓和曲线再一次成为重要的科研和工程分析课题。本文以一种新颖的方式分析和探讨当列车经过连续曲线路段时,如何才能得到一个理想的缓和曲线形式。根据以往的经验,我们将一系列数学曲线(例如一次抛物线,双扭线,放射螺旋线等)作为缓和曲线,经过分析证明其适用性是非常好的,通过分析列车在变曲率线路上的动力学运动。作者认为安全性、旅客舒适度和经济性是决定缓和曲线形式的主要因素,通过车轮在缓和曲线上运行的各种情况,我们得到一种最理想的缓和曲线形式,我们把它称作POLUSA曲线,POLUSA曲线的几何分析工作和实际的使用手册编写已经完成。
With the train speed and demand for automatic driving train, ease curve once again become an important research and engineering analysis. In a novel way, this paper analyzes and explores how to get an ideal form of relaxation curve when a train crosses a continuous curve segment. Based on past experience, we use a series of mathematical curves (such as a parabola, double twisted wire, spiral radiation, etc.) as the easing curve, after analysis proved its applicability is very good, by analyzing the train in the curvature of the line power Learn sports. The author believes that safety, passenger comfort and economy are the main factors that determine the shape of the curve. By the wheels running on the curve, we get an ideal form of relaxation curve, which we call POLUSA curve , POLUSA curve analysis of the geometric work and the actual use of manual preparation has been completed.