Abstract
A theoretical and experimental investigation is conducted into impact oscillations between a pantograph and an overhead rigid conductor line in a railway current system. The contact problem is modeled as impact oscillations of an intermediate spring-supported flexural beam excited by an oscillating plate. A numerical calculation using the modal interation relationship equations, which describe the modal velocities after the impact as functions of velocities before impact, are made to clarify the impact oscillations with multiple modal vibrations. Moreover, we conducted an experiment using a similar model based on the analytical model. Qualitative agreement was demonstrated between the experiment and theoretical results.
