In order to study the curve passing safety of high-speed trains under transient cross wind

the transient"Chinese hat"wind load model and calculation method are introduced.The transient"Chinese hat"wind load is reduced to the lateral force acting on the center of the side wall of the car body

the overturning moment and the shaking moment acting on the center of the car body.This paper introduces the definition and calculation method of curve outer rail superelevation

chooses reasonable curve radius and simulation speed according to the code

and determines 18 simulation conditions.Based on the multi-body dynamics software SIMPACK

the dynamic simulation model of high-speed train is established

and the parameters are set up.The overturning coefficient

derailment coefficient

wheel load reduction rate

wheelrail vertical force

wheel-axle lateral force and other vehicle safety indicators under 18 working conditions are analyzed.The Safety Law of curve passing of high-speed train is obtained under the conditions of applying cross wind outside the curve

applying cross wind inside the curve and no cross wind.