Abstract:According to the aerodynamic brake wing made up of composite material on a high-speed train, the finite element model of the bird and brake wing was established. Based on contact-collision theory and by using non-linear dynamic analysis software LS-DYNA the process of bird impact on the aerodynamic brake wing was simulated. Through the comparison of the experiment and numerical simulation results, the rationality and feasibility of the model were verified. The simulation results showed that the designed brake wing could withstand the bird strike with a speed of 500km/h and the limiting case was the bird velocity reaching about 625km/h. In the impact process, the deformation of the brake wing had a characteristic of shock wavetransmission. The peak stress mainly distributed in surrounding of the impacted area and the part area connected to the bottom case and rockerarm also can appear stress concentration.