埋头弹随行装药内弹道性能的数值分析

为研究埋头弹火炮的更优性能,基于2次点火及火药程序燃烧控制技术,建立了埋头弹固体随行装药内弹道零维模型。针对某埋头式榴弹的试验结果进行了数值模拟,获得的初速、膛压变化规律与实测结果相吻合。在此基础上,数值分析了加载随行装药后多参数变化对埋头弹火炮内弹道性能的影响。结果表明,在最大膛压不变的条件下,随行装药可提高炮口初速6%; 随行装药量、燃速系数及点火延迟时间三者合理优化匹配,才能实现最佳的内弹道性能。

Numerical Analysis of Interior Ballistic Performance of CasedTelescoped Ammunition With Traveling Charge

To study the better performance of cased telescoped ammunition(CTA),based on the second ignition and combustion control technology,the zero-dimensional interior ballistic model of CTA solid traveling charge was built. The numerical simulation on CTA was carried out,and the simulated change-laws of muzzle velocity and pressure accord with the experimental results. On this basis,the influence of multi-parameter changes on the interior ballistic performance of CTA loading traveling charge was numerically analyzed. The results show that under the constant conditions of the maximum pressure,the traveling charge can increase the muzzle velocity by 6%. It can achieve the optimal interior ballistic performance to reasonably optimize and match the traveling charge,burning-rate coefficient and ignition delay time.