爆炸变形式定向战斗部的数值仿真研究

NUMERICAL INVESTIGATION OF DETONATIVELY DEFORMABLE AIMABLE WARHEAD

用二维 FCM、EPIC- 2 D与三维 DYNA- 3 D非定常弹塑性流体力学程序 ,仿真研究了在爆炸变形式定向战斗部中成形与定向药非对称、非同步起爆条件下的起爆延时 ,安全隔爆 ,爆轰驱动壳成形 ,破片的抛射控制与定向增益等技术关键问题 ;从理论上论证了利用爆炸变形的定向驱动原理解决破片沿周向定向增益难题的可行性 ;给出了应用该原理设计战斗部时应遵循的原则。

Using 2-D FCM, EPIC and 3-D DYNA non-steady elastoplastic hydrodynamic codes, key technical problems such as the selection of initiation delay, safety of sympathetic initiation, case deforming driven by detonation, ejection control and aiming gain of fragments in detonatively deformable aimable warhead were investigated under the condition of asymmetric and asynchronous initiation. The possibility of using the principle of detonatively deformable aimable to solve the difficulty that aiming gain of fragments along peripheral direction is proved. Rules that apply this principle to design the warhead are proposed.