爆炸作用下舰载导弹战斗部的安全性分析

Numerical Simulations of Safety of the Ship-Board Missiles Warhead in the Blast

利用LS-DYNA软件建立了舱室和舰载战斗部的有限元模型,对不同起爆位置下舰载战斗部的安全性进行分析;结果表明:来袭导弹战斗部在其相邻舱室爆炸时,产生的破坏模式主要包括两种:起爆位置距离防护装甲较近时,爆炸冲击波形成的高压易使得与其相邻舱壁发生碎甲现象,产生较大的冲塞破口;起爆位置位于舱室中间时,舱室在爆炸冲击波的作用下发生解体,舱壁沿各个方向飞散;来袭反舰导弹战斗部头部与防护装甲距离为15 cm时为殉爆舰载导弹的最小安全距离。

The finite element model of the cabin and missile warhead was made with LS-DYNA. The safety of the missile warhead in different detonation positions was analyzed. The result shows that there will be two modes of destruction when the missile warhead exploded in adjacent： when the detonation position is close to the protective armor,the adjacent bulkhead will has a burst of thrust because of the high pressure caused by blast wave; when the detonation position is in the middle of the cabin,the cabin will be broke up under the action of the blast wave,the bulkheads scattered in all directions. The distance from the head of the anti-ship missile warhead to the protection armor range of 15 cm is the minimum safe distance foe the ship-borne missile.