Study on dynamics of coupled systems in high-speed trains

Abstract

This paper studies the relationship between various coupled systems that can affect train operation, including interactions between track and train, the pantograph–catenary system and train, power supply system and train, and airflow and train, with respect to the structure and characteristic of a high-speed railway. With the increasing speed and aggravated dynamic behaviours of trains, the necessity for a study of the system dynamics of high-speed trains, considering all these interactions, is discussed. The overall simulation, optimisation and control are achieved based on the analysis of the dynamics generated by coupled systems in high-speed trains, and a theoretical framework for the dynamics is presented in the paper.