一种交互式舰艇不沉性概率评估与设计系统

On ship unsinkability probability assessment and design system

为了提高舰艇在武器攻击后的不沉能力,在舰艇设计阶段就必须对不沉性进行概率评估。为此,介绍了一套完整的舰艇不沉性概率评估与设计系统,着重对其所需要的关键技术进行了详细阐述。首先,使用"子剖面"法,解决了复杂水密区域和船体外形的标准建模问题;然后,分析了武器炸点的三维分布规律和概率密度分布函数,在判断水密区域是否破损研究时,提出了"三维微元"算法,避免了求解复杂的非线性方程组;最后,在进行沉没逻辑定义时,引入了稳度储备系数的概念,以描述大角稳性对舰艇沉没的影响情况。该系统为设计人员提供了一个进行不沉性概率计算的平台,使用非常方便。

The probability assessment should be carried out for the unsinkability of a ship in the stage of designing it to improve its unsinkability after it is damaged by weapons.An integrated unsinkability probability assessment and design system was introduced and the key technology of the system was explained in detail.Firstly,the sub-section method was used to modle the watertight cabin and the complicated shape of ship hull.And then,the three-dimension charactersatics and the probability density distribiutaion functions of weapon blast points were analyzed and the three-dimension unit arithmetic was proposed to judge whether the watertight cabin was damaged.This arithmetic can avoid using a complicated non-linear equation arrary.Finally,the steady store coefficient was used to describe the effect of lange-angle stability on ship unsinkability when the sinkability logic was defined. The system is a calculation platform through which the designers can make the unsinkabi-lity probability assessment.