基于LS-DYNA的导弹战斗部跌落安全性分析

Analysis on Drop Safety of Missile Warhead Based on LS-DYNA

空空导弹在运输、储存和使用过程中,存在因意外而发生跌落的风险,因此分析导弹战斗部在跌落过程中的安全性是十分必要的;通过对空空导弹战斗部跌落过程的理论分析,确定了战斗部跌落时的装药最大应力的弹着角范围;随后,利用LS-DYNA建立的模型,对不同跌落高度、不同弹着角进行了计算和分析,验证了之前的理论分析,给出了战斗部的安全跌落范围,为空空导弹战斗部跌落安全性设计提供了依据。

In the course of transportation,storage and use,the airborne missile is probably at risk of drop.It is necessary to analyze the safety of falling missile. By the theoretical study on the drop course of airborne missile warhead,the range of impact angle in the max. grain charge stress has been confirmed in the paper. Thereafter,based on the model built by the LS-DYNA software,the drop heights and impact angles in different conditions have been calculated and analyzed. It has verified the previous theoretical study and provided the safe range of dropping airborne missile. The results given by the paper can be used to design and analyze the drop safety of airborne missile warhead.