一种M型药型罩形成环形射流的数值模拟研究

对串联战斗部前级聚能装药开孔不大的问题开展了研究，提出了一种M型药型罩，通过分析该药型罩结构设计的原理，运用ANSYS／LS-DYNA仿真软件对该药型罩形成环形聚能射流进行了数值模拟研究。结果表明：M型药型罩能够形成直径较大的环形射流，射流持续稳定；军用领域，能够用作串联战斗部的前级药型罩，对靶板切割成一定孔深且孔径大的环形孔，方便后级随进战斗部对靶板形成充塞破坏；民用领域，可以对一定厚度的靶板进行快速打孔。

Study on Numerical Simulation of M Shaped Charged Liner form Annular Jet

The problem that the precursory shaped charge in the tandem warhead cannot form big hole was studied.We presented a new shaped charge liner of M and the design principle of its structure was ana-lyzed,and numerial simulated the process of this shaped charge liner form annular jet with the ANSYS/LS-DYNA software.The result shows that Mshaped charge liner can form annular jet with big hole and the jet is sustained and steady.In military fields,it can be used as a tandem warhead of pre-shaped charge liner and can be cut into the target with a depth and large circular hole which can convenient make the stage warhead to destroy the target with plug.In civil field,it can fastly drill in the target with a certain thick-ness.