Exploring the Fatigue Problem of the Whole Suspension String of the Overhead Contact System
The failure of catenary components can seriously affect the operational safety of the catenary system,and the service reliability of the catenary system is an important foundation for the safe operation of trains and lines.In order to promote the development of high-speed catenary equipment technology,based on a large number of on-site research results,this paper introduces the current research status of domestic and foreign scholars on the failure mechanisms related to fretting wear,fretting fatigue,stress corrosion,etc.,sys-tematically analyzes and summarizes various problems and their causes that occur during the service process of high-speed railway catenary system suspension strings.This has laid a certain theoretical foundation for the research of catenary suspension strings.