Effect of contact wire gradient on the dynamic performance of the catenary pantograph system
Effect of contact wire gradient on the dynamic performance of the catenary pantograph system
复制标题
DOI：
10.1080/00423114.2020.1798473
复制
发表时间：
2020-07-30
影响因子：
3.6
通讯作者：
Chan, Katherine
中科院分区：
文献类型：
--
作者：
Hayes, Sam;Fletcher, David I.;Chan, Katherine
本文考虑了列车上的受电弓和铁路架空线之间的相互作用，提出的结果，可用于降低安装架空电气化的成本，例如，通过减少昂贵的桥梁重建的需要。理想情况下，架空电线将以平行于轨道的恒定高度运行，然而，由于间隙限制，需要在桥梁和隧道处降低电线高度，并在平交道口上方提高高度，因此坡度通常是不可避免的。在这项研究中，接触线梯度的范围上的接触力之间的架空线和受电弓的影响进行了研究，使用一个有效的有限元模型。引入窗口技术来识别离散动态行为，发现架空导线梯度可以增加，对接触力的影响最小，表明当前的导线梯度限制是保守的。这可能为电气化开辟机会，比遵循当前标准更具破坏性。
This paper considers the interaction between a train mounted pantograph and a railway overhead line, presenting results that could be used to reduce the cost of installing overhead electrification, for example, by reducing the need for expensive bridge reconstruction. Ideally, overhead wires would run at a constant height parallel to the track, however, gradients are often unavoidable due to clearance limitations requiring lower wire heights at bridges and tunnels, and higher heights above level crossings. In this study, the influence of a range of contact wire gradients on the contact force between the overhead line and pantograph has been studied using a validated finite element model. Introducing a windowing technique to identify discrete dynamic behaviours found that overhead wire gradients can be increased with minimal effect on the contact force, showing current wire gradient limits are conservative. This may open up opportunities for electrification, less disruptive than following current standards.