平衡抛射武器内弹道性能研究

Interior Ballistic Performances of Equilibrium Launcher

该文研究了某平衡抛射武器发射药厚度对其初速或然误差、最大膛压等内弹道性能的影响。采用所建立的平衡抛射武器内弹道模型计算了该武器系统的内弹道性能,进行了内弹道性能试验,计算结果与试验吻合较好。采用Monte Carlo模拟,计算了不同厚度发射药的弹丸初速及其或然误差和最大膛压。研究表明,在保持弹丸平均初速不变的条件下,发射药厚度对内弹道性能及其稳定性有明显影响。建立了发射药厚度与内弹道性能参数间的定量关系,为改进该武器系统的内弹道设计提供了帮助。

The paper studies the influence of propellant thickness on the interior ballistic performance of an equilibrium launcher, such as, probable error of muzzle velocity, maximum pressure. An interior ballistic model of the equilibrium launcher is established, by which the interior ballistic performance is computed. A test for interior ballistic performance is accomplished. The computational results are in good agreement with test results. By means of Monte Carlo simulation, muzzle velocity and its probable error and maximum pressure in chamber are computed with different propellant thickness. The studies show that the propellant thickness has obvious influence on probable error of muzzle velocity and maximum pressure under the condition of same average muzzle velocity. The quantitative relation between parameters of interior ballistic performance and propellant thickness is acquired, which provides foundation for improving interior ballistic design of the equilibrium launcher.