带泡沫缓冲的导弹跌落仿真

为了防止在运输、维护、使用过程中导弹因发生跌落而受到损坏,在导弹周围使用泡沫对其进行保护,对里面装有泡沫和导弹的包装箱跌落冲击地面的过程进行仿真,查看导弹发动机受到的加速度和弹体上的应力是否安全,为导弹跌落试验提供一定的参考,节约它的试验成本。分析了导弹的结构组成及常用缓冲包装材料的优缺点。将导弹用聚氨酯泡沫进行包裹,使用有限元软件进行显式非线性动态仿真分析。模拟结果表明:在跌落过程中,聚氨酯泡沫对导弹起到了良好的缓冲作用。使用泡沫来保护导弹,这种方法是可行的。

Simulation of Missile Drop with Foam Cushions

In the process of transport, maintaining, and operation, in order to preventing the missile from damaging because of drop, foam is used to protect the missile around it. There are foam and a missile inside the box. Do simulation about the process of the box drops to the ground. Examine whether the acceleration of the missile engine and the stress on the missile shell are safe or not. The simulation provides a reference to missile drop test. It also saves a lot of money about the cost of the missile test. The paper analyses the structure components of a missile and the advantages and disadvantages of common cushioning materials. The missile is wrapped in polyurethane foam. Use finite element software to analyze the process with explicit non-linear dynamic method. The result of the simulation shows that polyurethane foam works a good cushioning effect to the missile in the drop process. It is feasible to use foam to protect the missile.