Abstract:

Current research on external ballistic trajectory of the shells is mainly based on data analysis,lacking dynamic realtime and intuitive simulation and analysis of external ballistic trajectory.In the paper we make a detailed description of mathematical model about external ballistic trajectory and analyze various methods for numerical simulation.By constructing two modules named threedimensional scene simulation environment based on OpenGL and twodimensional coordinate axes based on MATLAB,we achieve a visualization simulation platform based on realtime numerical simulation.The platform can analyze the ballistic trajectory,realtime motion gestures and fall point dispersion;it also shows the impact of wind speed on ballistic trajectory in detail. 

Key words: external ballistic trajectory;numerical simulation;scene simulation;fall point dispersion