提出适合于水下爆炸的动态稳定性判别准则：基于药量的B-R准则、基于爆距的B-R准则和基于新型冲击因子的B-R准则。利用这些准则计算了某型舰在水下爆炸中舱壁结构的动态稳定性，计算发现气泡脉动载荷在舱壁动稳性中是不可忽视的，以及水下爆炸中结构的稳定性分为三个阶段。并且计算了不同攻角下舱壁结构的失稳载荷和失稳模态，得到一些有益规律,从而为工程设计提供参考。

Criterions for judging the dynamic stability of bulkheads in underwater explosion are presented, including the B-R criterion based on the charge weight, the B-R criterion based on the standoff distance and the B-R criterion based on the new impact factor. The dynamic stability of bulkheads of a certain warship is calculated with these criterions, and it is found out that the bubble pulsating loads can not be ignored in the stability analysis. The stability of the structure is separated into three stages. Besides, the collapsing loads and the collapsing modes in different attack angles are computed, and some laws are obtained which offers some valuable references to engineering.