中文摘要：

舰船在多发鱼雷攻击下的生命力是舰船设计者和使用者极为关心的问题。在经典抗沉性分析基础上，分析了舰船抗多发鱼雷攻击的极限能力。根据多发武器攻击时舱室破损后浸水情况，讨论了攻击武器的精度与舰船极限抗沉能力的关系、生命力指数与武器破坏半径的关系和极限沉没概率的取值等问题。采用该方法可以得到舰船在多发武器攻击下的沉没概率和极限命中次数，进而评估舰船的抗打击能力及舱室布置方案的优劣，为舰船生命力设计提供支持。

英文摘要：

The survivability of warships under multi-torpedo attack is much concerned by the designers and users. The maximum torpedo-attack resistance is analyzed based on the classic anti-sinking capability analysis. According to the flooding of damaged compartment under multi-weapon attacks, the relationship of the weapon accuracy and the warships maximum anti-sinking capability, the connection between the survivability index and the weapon destruction radius, and the choice of limit sinking probability values are discussed. The sinking probability and the maximum hitting count of torpedoes to a warship under multi-weapon attacks can be obtained by the method. This method can also evaluate the warship anti-striking capability and the quality of the cabin layout plan, providing support for warship survivability design.