ABSTRACT

An increase in electric railway vehicles service velocity requires that correct interaction between the pantograph and the catenary is ensured. This implies the need for developing mathematical models of pantographs and catenaries and determining their parameters. The article presents a method to determine parameters of mechanical joints of a railway pantograph based on analysis of pantograph subassemblies in swinging motion. The experimental tests consisted in disassembling the pantograph and creating partial subassemblies which were then analysed with respect to their damped linear or angular oscillations. The simulation analysis required developing, in CAD, 3D models of individual pantograph parts and their subassemblies. Defined were joints between particular elements, which represent of real pantograph structure. The inertia parameters of the model were determined, based on structural characteristics and physical properties of materials, used for manufacturing individual pantograph elements, and then verified experimentally. The dissipative parameters of the mechanical joints were calculated iteratively. The model of complete pantograph assembly was also subject to verification and in this case, good convergence between simulation and experiment results was achieved. The obtained parameter values can be used in simulation models of other railway pantographs having a similar structure.

摘要

电气化铁路车辆服务速度的增加需要确保受电弓和接触网之间的正确交互。这意味着需要开发受电弓和悬链线的数学模型并确定它们的参数。本文提出了一种基于对摆动运动受电弓组件的分析确定铁路受电弓机械接头参数的方法。实验测试包括拆卸受电弓并创建部分子组件，然后对其阻尼线性或角振荡进行分析。仿真分析需要在 CAD 中开发单个受电弓部件及其子组件的 3D 模型。定义了特定元素之间的关节，它们代表了真实的受电弓结构。该模型的惯性参数是根据材料的结构特性和物理特性确定的，用于制造单个受电弓元件，然后进行实验验证。机械接头的耗散参数是迭代计算的。完整的受电弓装配模型也进行了验证，在这种情况下，模拟和实验结果实现了良好的收敛性。得到的参数值可用于其他具有类似结构的铁路受电弓的仿真模型中。完整的受电弓装配模型也进行了验证，在这种情况下，模拟和实验结果实现了良好的收敛性。得到的参数值可用于其他具有类似结构的铁路受电弓的仿真模型中。完整的受电弓装配模型也进行了验证，在这种情况下，模拟和实验结果实现了良好的收敛性。得到的参数值可用于其他具有类似结构的铁路受电弓的仿真模型中。