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The pantograph-catenary system is widely used in most electrified rail networks around the world to transmit continuous electric current to the train. Most studies about the pantograph-catenary interaction are performed at a speed of lower than 350 km/h. In this article, the experimental test and the numerical simulation of the pantograph-catenary interaction were conducted at different speed levels, including the 380 km/h speed close to the catenary's wave speed. The pantograph-catenary contact force collected via an inspection vehicle was used to validate the numerical accuracy. The contact force statistics obtained by both the simulation and experimental test exhibit excellent agreement at different speeds. Then a neural network optimization algorithm is implemented to optimize the contact quality at four operating speeds. The best optimization performance is observed at the speed of 380 km/h in terms of the over 25% reduction in the contact force standard deviation.
Song et al. (2024) studied this question.