Abstract The tribological performance of metro rigid overhead lines against pantograph sliders was experimentally studied. The test parameters from actual metro lines were adopted. During testing, the friction force, wear volume, temperature, vibration of the pantograph slider, voltage drop, and current correlating with arc ablation were collected. The worn topography of the slider and wire was observed. Experimental results illustrate that the direct current (DC) and vibration of the slider can largely affect the tribological performance of the rigid overhead line against the pantograph slider. Main wear mechanisms are the arc ablation, plowing wear and adhesive wear. The abnormal joint between two slider blocks can bring about severe plowing wear of the overhead line.

中文翻译：

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直流通路下刚性架空线对受电弓滑块的摩擦学性能

摘要 对地铁刚性架空线对受电弓滑块的摩擦学性能进行了试验研究。采用了实际地铁线路的测试参数。在测试过程中，收集了与电弧烧蚀相关的摩擦力、磨损量、温度、受电弓滑块的振动、电压降和电流。观察滑块和导线的磨损形貌。实验结果表明，滑块的直流（DC）和振动会在很大程度上影响刚性架空线对受电弓滑块的摩擦学性能。主要的磨损机制是电弧烧蚀、犁形磨损和粘着磨损。两个滑块之间的异常接头会导致架空线严重的犁形磨损。