Dynamics Performance of High speed Train with Aerodynamic Brake Under Crossing

Abstract:

Based on the aerodynamic loads calculated by fluid dynamics and the high speed dynamic model, the influence of braking panels on vehicle vibrations and running safety were studied on the condition that two trains crossed each other both at the speed of 400 km·h-1, which meant the relative velocity was 800 km·h-1. The results show that the displacement and vibration acceleration of car bodies increase a lot when the two trains cross each other. In comparison with the model without opening braking panels, the safety coefficients, such as derailment coefficients, wheel load reduction rates, are different. However, all the results satisfy the safety standards.