基于多种失效模式SPS复合钢板替换船用钢板的优化设计

在SPS复合钢板的设计中获取不同的失效模式。以减重为目标,应用序列二次规划法对SPS复合钢板进行等效船用钢板的优化设计,同时对SPS复合钢板进行多目标优化,应用层次分析法定各目标的权重。在这两种优化方法的基础上,对船用钢板与SPS复合钢板进行了屈曲、弯曲对比数值分析,同时将结果与理论计算结果对比分析。结果表明,SPS复合钢板重量能够减轻37%以上,刚度增加两倍多,但厚度增加70%。

Based on the failure mode of SPS replace ship plate optimization design

The SPS composite plate is designed to replace the traditional steel plate, and there are different failure models in different working conditions and design requirements. In order to reduce the weight, the SQP algorithm is employed to optimize marine steel plate design by selecting geometry size and material. At the same time,multi-objective optimization is also used in the design of SPS composite plate, meanwhile the analytic hierarchy process is employed to define the proportion of each objective. Based on these two kinds of optimization methods in Ansys,the buckling and bending performance of SPS composite steel plate is compared to the traditional marine steel plates. At the same time,the analysis of simulation results are compared with the theoretical results. The results show that: when there is no change in the buckling strength,the SPS composite steel plate can reduce more than 37% weight ,double the stiffness, however there is just 70% increasing in the thickness.