几种结构的三段离散杆战斗部数值模拟

Numerical Simulation of Three-beam Rod Controlled Motion Warhead with Different Structure

针对三段可控离散杆战斗部,探索性提出并分析了错位与顺反等不同排列结构,利用ANSYS/LS-DYNA软件对其进行了数值仿真模拟,动态再现了离散杆从起爆到形成杀伤环的全过程。研究结果表明错位排列有助于段与段杆条间隙的互相补充,使得杆条整体分布均匀,有效提高毁伤概率;反式排列使得段与段杆条的自旋方向相反,杆条形成杀伤环时间缩短,此种排列技术有助于控制每段杆条群杀伤环的形成时间,实现远近距离不同的多重杀伤环空间分布。

Three-beam rod controlled_motion warhead was researched in this paper,which has different structure of discrete rods stagger arrangement or trans arrangement. The whole dispersal process of these rods simulated by ANSYS / LS-DYNA. The result indicate that the gap between the rods in each layers with stagger arrangement structure can be mutually complementary. At the same time the phenomena that the discrete rods spin in the opposite direction with trans arrangement structure proved. This way can shorten the time forming killing hoop. So such technology can help to control the formation time of each rod ring to achieve different spatial distribution of multiple killing hoop.