Study on the coupling relationship between the friction and wear of the pantograph-catenary sliding electrical contact and the current receiving quality

In the pantograph-catenary sliding electrical contact of an electrified railway, friction and conduction are coplanar, which determines that pantograph-catenary friction and current collection are interactive. In order to study the coupling relationship between friction and wear and current receiving quality, based on experimental data, the evaluation index system of friction and wear and current receiving quality is established. The coupling coordination model of friction and wear and current receiving quality is constructed by the entropy method and coupling coordination degree, and its comprehensive level, coupling correlation degree, and coordination degree are studied. The results show that they are in a state of high coupling interval aggregation, and the coordination value first decreases and then increases with the increase in current. According to the coupling and coordination characteristics under different conditions, it provides a basis for the selection of pantograph-catenary system operating conditions and the formulation of optimization strategies.