不同结构下双束旋转式离散杆战斗部的数值模拟研究

Numerical Simulation of Dual-beam Rotating Discrete Rod with Different Structure

以反舰导弹为典型目标,提出了反式错位双束离散杆和顺式双束离散杆这两种不同方案的双束离散杆战斗部。利用前处理软件Truegrid建立了双束旋转式离散杆的有限元模型,应用非线性有限元软件LS-DYNA,采用流固耦合算法,模拟了这两种战斗部的飞散过程,并对仿真结果进行了比较分析。研究发现:反式错位双束离散杆战斗部所形成的两个杆环的杆条自旋方向相反,且两排杆条间隙可以相互补充,能有效提高对目标的毁伤概率。

Taking anti-ship missile as type, two different kind of discrete rods of the anti-type dislocation double-beam discrete rod and the cis-double-beam discrete rod were proposed. The finite element model of dual-beam rotating discrete rods was established by the pre-processing soft＇rare Truegrid; the fluid-solid coupling algorithm was adopted using the nonlinear finite element software LS-DYNA to simulate dispersal process of dual-beam rotating discrete rods, and the simulation results were comparatively analyzed. The results show that the rods in two rod rings which the anti-type dislocation double-beam discrete rods form spin in the opposite direction, and the gap between two rows of poles can be mutually complementary, so the probability of damage on targets is improved.