集装箱船舶中剖面结构形式的最优选择

The Opetimization of Midship Section Structure Forms for the Container Ship

本文讨论集装箱船舶中剖面结构形式的最优选择。首先建立了３种结构形式———双底双壳结构、底边舱顶边舱结构和抗扭箱结构的优化设计数学模型，在复合形法获得连续变量最优解的基础上，再用ＭＤＯＤ法进行第二步优化，分别获得了规格化的离散变量最优解；接着，又用多种影响结构形式优劣的因素进行了结构模糊综合评判，指出对集装箱船舶而言，抗扭箱结构形式最优，双底双壳结构形式次之。

Builds the optimum design models of three structure forms including the warping stress caused by twist. On the basis of obtaining the continuous variable optimal resolutions by using the composite form method, the MDOD method is used for the second step optimum and then the standardized discrete variable optimal resolutions are obtained respectively. Finally, the fuzzy comprehensive assessment is made by using the various elements influencing the structure form. So it is indicated that the torsion box structure is the best structure for the container ship, the double hull and double bottom structure is the better structure,and the bottom side tank and top side tank structure is the worst.