【摘要】 基于经典内弹道学理论,建立了序列装药的内弹道数学模型。用MATLAB语言编写了模拟程序,以某小口径武器为对象,模拟分析了不同装药量、喷孔直径和点火时间差对p-t和v-t曲线的影响。结果表明,附加药室的装药量存在一理想值,此时附加药室火药的利用率最高;喷孔直径存在一域值,大于或小于该值,初速都将变小;点火时间差为某一值时,最大膛压不变且作功能力最强。合理选择附加药室装药量、喷孔直径和控制能量补充时间是能否在最大压力处实现压力平台的关键。更多还原

【Abstract】 Based on the classical interior ballistic theory,a mathematics model of sequential charge was founded.With the simulating program compiled by MATLAB,one small-bore weapon were simulated.The effect of different charge weight,spout diameters and igniting time on the p-t curves and v-t curves were simulated and analysed.The calculated results show that for the subsidiary charge weight there is an ideal value with which the efficiency of the subsidiary charge will be maximum;for the spout diameters there is a threshold value,up or down that value the muzzle velocity will decrease;for the igniting time there is a certain value,the efficiency is best with changeless maximum pressure.Adopting suitable subsidiary charge weight and spout diameters and precisely controlling the igniting time is the key to achieve the pressure platform at the maximum pressure.更多还原