Study on the effect of different structural parameters on the wear mechanism in the anchor-segment joint of the rigid overhead catenary

Abstract

Abnormal wear can occur at the anchor joint section of a rigid catenary in metro vehicles. This study aims to compare the impact of the contact wire distance at the anchor joint section on the wear mechanism between the contact wires and the carbon skateboard. The findings indicate that contact pairs with a reduced center distance of contact wires exhibited lower contact stress and displayed minimal fluctuations in the dynamic contact force, and the coefficient of friction increased after decreasing. The wear rate demonstrates an inverse correlation with the center distance of the contact wires. Furthermore, the electrical contact resistance continuously increases as the slip distance increases.