Study on dynamics of coupled systems in high-speed trains

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.