Abstract：In the pantograph-catenary system of electrified railway, the frictional vibration acceleration between the pantograph slider and the catenary wire reflects the contact condition of the current-carrying friction, and affects the off-line probability and wear state of pantograph-catenary system. In this paper, by analyzing the contact state between the pantograph slider and catenary wire, the spring-damping-quality module friction vibration model of the pantograph-catenary friction pair was established. According to the experiments, the relationship of characteristic parameters and force with three factors in frictional vibration model was analyzed by considering the influence of normal pressure, running speed and high current on frictional vibration. Then, the experimental data was used to solve the constant parameters in the functional relationship. Finally, the accuracy of the frictional vibration model was verified by experiments, which provides a theoretical basis for further study on the current-carrying frictional wear mechanism and off-line probability of the pantograph-catenary system.
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2020, Vol. 35 
