Rule of Aerodynamics Braking Force in Longitudinal Different Position of High-speed Train

Abstract:

Characteristics of the flow field around the brake panels are analyzed when all carriages of the train are equipped with aerodynamic brake.The kinetic rule is acquired that the first windward brake panel produces the largest drag,and the drag is reduced step by step in the windward.Then,principle of the braking force is also studied by taking a high-speed train model as an example,when the vehicles with the pantographs are not equipped with brake panels in order to reduce the impact of brake panels on the pantograph.This principle of braking force is compared with the rule of braking force when all carriages are equipped with brake panels.Finally,an analysis is made of the braking force effect generated by aerodynamic brake.

Key words:high-speed train; aerodynamics brake; brake panels; rule of braking force