Modeling Simulation and Performance Optimization Analysis of Aviation Ammunition Ejection with Cold Gas

Aiming at the problems of pollution and corrosion equipment for blank cartridge ejection device, in this paper, a new type of aviation ammunition cold ejection device with compressed air was established and it can compress air automatically. In order to reduce the maximum acceleration of aviation ammunition, the mathematical model of this cold air ejection device was established on the basis of classic interior ballistic theory and aerodynamics theory. MATLAB was used for simulation to analyse the velocity and acceleration of aviation ammunition. The simulation results show that when the ejection speed of aviation ammunition is satisfied, the maximum acceleration of aviation ammunition can be reduced effectively by adjusting some structural parameters of ejection device, and the simulation results can provide a theoretical basis for subsequent depth optimization of the ejection device.