Software development for a multibody pantograph model and FEM catenary system

Abstract

This work deals with the implementation of software simulating the dynamics of a moving pantograph interacting with the catenary system. Catenary systems, utilized in the railway industry for transmitting electrical energy to a vehicle, consist of support poles and wires, and they are modeled by FEM. On the other hand, a multibody approach is used to model pantographs, which consist of several rods and other bodies interconnected by joints. Together, solving the dynamics of this complex mechanical system represents a very interesting task, including several nonlinear features such as friction and clearances in pantograph joints or one-sided forces generated in catenary wires. Through advanced computational techniques, it is possible to predict how imperfections in joints influence the overall performance of the pantograph during its interaction with the catenary system. This simulation approach allows engineers to gain insights into potential issues, optimize the design, and enhance the reliability and efficiency of the electric rail vehicle.