In this paper, double cylinder shell structure with stiffening ribs is used to solve some problems about the impulsive environment of underwater explosion for submarinestructure.
The collision ofsubmarinestructure under water is a main accident form and one of the most dangerous states for ship collision.
潜艇结构水下碰撞是潜艇的主要事故形式,也是船舶碰撞最为危险的状态之一。
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The results of calculation indicate that FETA (Fuzzy Event Tree Analysis) method applied is better to know the rules of accidents about submarinestructure system.