Ice coating on overhead contact system (OCS) will affect the sliding of pantograph, and arc discharge phenomena will occur between pantograph and catenary, which will threaten the normal operation of train. This paper presents a comprehensive model to analyze the dynamics of icing on pantograph-catenary (PAC) system. The finite element model (FEM) is used for building the catenary, the pantograph is modeled as lumped-mass model, and the ice section of the cable is fan-shaped. The increased density method, uniform load method, and combinatorial material method of icing are used to analyze the icing problem of PAC system. The similarities and differences between the three simulation methods are compared. The influence of the ice thickness on the current collection quality between the pantograph and catenary at the different operating speeds calculated by the three methods is basically the same, which fully illustrates the effectiveness of the simulated ice coating method. In comparison, the combinatorial material method is a more reasonable method for calculating the icing of catenary systems. The research also shows that the influence of icing on the current collection quality of PAC system is different when the train runs at different speeds. Specifically, as the speed of trains increases, the effect of ice thickness on the current collection quality of the PAC system is becoming increasingly apparent.

中文翻译：

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考虑覆冰的受电弓－悬链系统的动力分析

高架接触系统（OCS）上的冰层会影响缩放仪的滑动，并且缩放仪和悬链线之间会发生电弧放电现象，这将威胁列车的正常运行。本文提出了一个全面的模型来分析受电弓-类别（PAC）系统的结冰动力学。使用有限元模型（FEM）来构建悬链线，将受电弓建模为集总模型，电缆的冰段为扇形。采用增加密度法，均匀载荷法和组合结冰法来分析PAC系统的结冰问题。比较了三种仿真方法之间的异同。在这三种方法计算出的不同运行速度下，冰厚对集电弓和悬链线之间集流质量的影响基本相同，充分说明了模拟制冰方法的有效性。相比之下，组合材料法是计算悬链线系统结冰的更合理方法。研究还表明，当列车以不同速度行驶时，结冰对PAC系统当前收集质量的影响是不同的。具体地，随着火车速度的增加，冰厚度对PAC系统的当前收集质量的影响变得越来越明显。组合材料法是计算悬链系统结冰的一种更合理的方法。研究还表明，当列车以不同速度行驶时，结冰对PAC系统当前收集质量的影响是不同的。具体地，随着火车速度的增加，冰厚度对PAC系统的当前收集质量的影响变得越来越明显。组合材料法是计算悬链线系统结冰的一种更合理的方法。研究还表明，当列车以不同速度行驶时，结冰对PAC系统当前收集质量的影响是不同的。具体地，随着火车速度的增加，冰厚度对PAC系统的当前收集质量的影响变得越来越明显。