Simulation of the Influence of Ballistic Factors on Shell Dissolution

Abstract

The influence of initial random variations of ballistic factors, such as mass, initial projectile velocity and throwing angle, on the scattering of projectiles by the Monte Carlo method is studied. The study used a computer external ballistic model of the projectile flight of a 30-mm gun, based on a system of differential equations. A parabolic spline is used to interpolate the air drag law of 1943. For each of the selected ballistic indicators (projectile mass, initial velocity of the projectile, and throwing angle), 1000 normally distributed random values were generated, and hit points were calculated, from which the standard deviation was calculated.
 Several series of computational experiments were performed to study the influence of each factor separately, the pairwise influence of factors and the combined influence of three factors. In the case of the combined effect on the scattering of all three studied factors, the greatest influence is the magnitude of the variation of the initial velocity of the projectile. Software and techniques can be used by munitions developers to improve their combat capabilities and performance ammunition. When firing a firearm, the phenomenon of scattering occurs due to the variety of factors that change randomly from shot to shot. Scattering characteristics are determined by statistical processing of firing data in the range. Projectile scattering is closely linked to the effectiveness of hitting targets, and therefore the study of scattering is given much attention by researchers.
 For practical application, scattering estimates obtained by statistical analysis of experimentally obtained data are usually used.