MECHANICS

Estimation of ultimate capability of a shot with use high-density propellants for an increase in projectile muzzle velocity

V. V. Burkin, A. S. D'yachkovskiy, A. N. Ishchenko, V. Z. Kasimov, K. S. Rogaev, A. D. Sidorov, E. Yu. Stepanov

Research Institute of Applied Mathematics and Mechanics of Tomsk State University, Tomsk, Russian Federation

Abstract: Theoretical studies aimed at demonstrating efficiency of using high-density high-energy propellants in an artillery round are carried out. Parametric studies on shot capabilities are performed using the special software package based on a mathematical model of intraballistic processes. The shot is fired using a model high-density propellant with a traveling charge placed in the bore behind the shell in addition to the main propellant charge in a medium-caliber model ballistic setup. The propellant burning law obtained by calculations and experiments on a small-caliber setup is adapted to a medium-caliber one. Charging conditions are determined to achieve the highest increase in the projectile muzzle velocity with the use of propellants as compared with a classical charging scheme of the shot at a maintained level of the required pressure. Recommendations for upgrading high-density propellants resulting in an additional increase in the projectile muzzle velocity are presented.

Keywords: internal ballistics, barrel systems, gas dynamics, high-energy propellants, travelling charge, combustion of propellants.

UDC: 531.57

Received: 25.12.2020

DOI: 10.17223/19988621/74/8

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