基于多岛遗传算法的舱口盖结构优化设计

为降低空船质量，提高经济性，针对某船舱口盖结构减重进行研究。采用拉丁方试验法建立样本空间，根据样本参数进行有限元模型求解。采用响应面模型法建立舱口盖结构设计近似模型，以规范中对应力和变形的要求作为设计约束条件，基于多岛遗传算法对某船舱口盖结构进行优化设计。结果表明，优化解收敛性好，可满足规范要求。

Optimization Design of Hatch Cover Structure Based on Multi-Island Genetic Algorithm

In order to reduce the light weight and improve the economy, the weight reduction of hatch cover structure of a ship is studied. The Latin square test method is used to establish the sample space, and the finite element model is used to find the solution according to the sample parameters. The response surface model method is used to establish the approximate model of hatch cover structure design, the requirements of stress and deformation in the specification are taken as the design constraints, and the optimization design of hatch cover structure of a ship is made based on the multi-island genetic algorithm. The results show that the optimization solution is of good convergence and can meet the specification requirements.