This is the theoretical foundation for simulating the gun interior ballistic performance using the closed vessel experiment . based on the functions from closed vessel experiments , the ballistic simulation results of maximum chamber pressure , muzzle velocity and p - t curves of a 105mm gun charged with ltsc nitroamine propellant at + 50c , + 15c and - 40 environmental temperature were in good agreement with experimental data 在密闭爆发器实验的基础上，应用可视化程序对某105mm火炮采用低温感硝胺火药在+ 50 、 + 15和- 40环境温度下的最大膛压、初速以及膛压?时间曲线进行了弹道模拟，模拟与实验结果具有较好的一致性。
In order to improve the accuracy of artillery fire corrections , this essay , having been integrated with the project " research on how to determine the muzzle velocity reduction of the piece " issued by the arms department of the general staff headquarters of pla , deals with a new method of measuring the muzzle velocity reduction of the piece 部队测定火炮初速减退量的传统方法是药室增长量法。该方法已不能满足现代炮兵精确火力打击要求。为提高炮兵射击修正精度，本文结合总参兵种部下达的“确定火炮初速减退量方法研究”项目，研究了一种测定火炮初速减退量的新方法。
