Investigation of Contact Force and Stress Relationship in Overhead Line Contact Wires with Finite Element Method

Authors : Özgün SUNAR

Pages : 98-108

Doi:10.47072/demiryolu.1295172

View : 44 | Download : 72

Publication Date : 2023-07-31

Article Type : Research Paper

Abstract :Railway overhead line electrification insert ignore into journalissuearticles values(OLE); is used for providing continuous power to the trains throughout catenary wires and the current collector device of the pantograph. The interaction of contact force exerted by the pantograph and contact wire is an important topic in regulating OLE dynamics. OLE components are subjected to fluctuating contact forces due to the trains running with high speed, therefore, it is important to estimate service life of contact wires and pantograph carbon collectors by considering contact wire/pantograph interference. This study performs a number of contact force and stress/strain analysis of standard OLE designs used in Europe, Series 1, Sicat S1.0, Sicat H1.0, Re250 and EAC 350, with finite element method. The results establish a link between stress levels and contact force in the contact lines depending on the design parameters of contact wire type, pretension, span-length, and contact wire material. Understanding the bending of the contact wire due to the contact force will help to predict potential failures in mainlines and extend our knowledge of safety and reliability of various OLE design parameters.
Keywords : seyir teli, sonlu elemanlar analizi, gerilme, temas kuvveti, katener hatlar