Analysis of the dynamic interaction between the pantograph and catenary system

The work presented in this paper emphasis the modeling and simulation of the dynamic interaction between the pantograph and a catenary system. The main aim of the paper is to present the influence of catenary stiffness on the overhead system dynamics. To investigate the effect of the catenary stiffness on the system vibration a new formula describing stiffness has been introduced. The limit uplift force which does not cause the contact loss was determined. General results are illustrated by numerical examples in which the effect of contact wire stiffness is observed. The comparison of the result of simulation and experiment, performed on especially built stand, is provided.