High Speed Train: Speed and Technology

摘要

The raise of train speed is accompanied by a series of key technology challenges. In this article we described new characteristics caused by the speed increase of high speed trains in the following aspects: wheel-rail interaction under strongly coupled dynamics, vibration and mode design of car body, aerodynamic design of high speed train nose shape, and aerodynamics of train-ground interaction, etc. Technological solutions are provided based on both our fundamental research and engineering practice in the framework of the systematic dynamics analysis. System reliability of high speed trains at long time operation is also discussed.