Study on the Influence of Launch Parameters on the Safety of Vehicle Trajectory

The mathematical model of the underwater launching and falling trajectory with rudder is established.At the same time,taking the different depth of launch and the speed of the barrel as the initial condition,we simulated the trajectory of the vehicle.The trajectory characteristic parameters such as the maximum water discharge height,the maximum water depth and the lateral displacement of the z direction are obtained.Then,the influence of the ballistic trajectory on the safety of the launch carrier under different emission parameters is analyzed,taken the nearest distance between the aeronautical heart and the launching point after the launch as the safety criterion.The simulation results show that when the depth of launch is 30 m and the velocity of the shot is 35 m/s,the nearest distance between the aeronautical heart and the launch carrier is the maximum and the safety is the highest.