为了判断单兵火箭发射时其包装发射筒前盖碎片对弹头引信碰击触发开关与涡轮发电机的影响,采用LS-DYNA软件对单兵火箭发射时弹前空气压力推破前盖过程和弹丸出筒口时撞破前盖这两种可能的情形进行了数值仿真。结果表明:前盖是被弹头引信撞破的,而不是被压缩空气推破的;与引信撞击后,前盖中心环形槽处会出现1~4个微小碎片,但受压缩空气的推动,这些碎片并不会进入引信进气道。仿真结果与从靶场回收到的前盖碎片基本吻合。

In order to determine the impact of front cover fragmentation of the packaging launcher on warhead fuze crashing trigger switch and turbine generator when an individual rocket was launched, the LS-DYNA software was used to simulate the process of front cover crash through compressed air pressure and pushed to break while projectile moving through the launcher. The results show that the front cover is crashed by the fuze rather than compressed air; one to four small fragments that occurred in the center of the ring groove will be promoted by the high pressure gas, the fragments does not enter the air inlet of the fuze. The results of simulation is basically consistent with the front cover fragments recovered from the firing field.