串联攻坚战斗部前级爆轰场对后级影响分析

Analysis of Following Projectile Effected by Precursory Charge of Tandem Warhead

为了研究串联战斗部前级爆轰场作用下,后级随进子弹炸药安全性及其速度降的大小,建立了一维冲击波传播理论分析模型,由图解法得到了后级装药的初始压力。通过与炸药引爆阈值压力比较,判断了后级装药的安全性。根据动量守恒,得到了后级子弹的速度降表达式。进行了串联装药的数值计算,得到一定隔板厚度情况下后级装药受到的冲击压力和后级子弹速度降,计算得到的后级子弹变形情况与试验结果相吻合。

To judge explosive stability and estimate speed reducing of the following projectile of tandem warhead under the blast of the precursory charge, a theoretical analysis model of the one-dimension shock wave spreading is established. Incidence pressure of the explosive of following projectile is obtained through diagram. The explosive safety is estimated through comparing incidence pressure with critical pressure of initiation. By use of momentum theorem, the formula of speed reducing of secondary KE projectile is set up. Numerical simulation of tandem warhead is conducted. The results of incidence pressure of the explosive of following projectile and speed reducing of secondary KE projectile are obtained. The deformation diagram of following projectile of numerical simulation is in good agreement with that of experiment.