静水和波浪中阻力最小的集装箱船参数化船型优化

查看全文 作　　者：Yanxin [1]Feng;Ould el [1]Moctar;Thomas [1]E.Schellin

机构地区：[1]Institute of Ship Technology,Ocean Engineeringand Transport Systems(ISMT),University of Duisburg�Essen,47057 Duisburg,Germany

出　　处：《Journal of Marine Science and Application》索引2021年第20卷第4期,共24页

基　　金：the University Postgraduate Program([2013]3009);the China Scholarship Council(CSC)[N201306250034]. 摘　　要：This paper described the process of generating the optimal parametric hull shape with a fully parametric modeling method for three containerships of diferent sizes.The newly created parametric ship hull was applied to another ship with a similar shape,which greatly saved time cost.A process of selecting design variables was developed,and during this process,the infuence of these variables on calm water resistance was analyzed.After we obtained the optimal hulls,the wave added resistance and motions of original hulls and optimal hulls in regular head waves were analyzed and compared with experi-mental results.Computations of the fow around the hulls were obtained from a validated nonlinear potential fow boundary element method.Using the multi-objective optimization algorithm,surrogate-based global optimization(SBGO)reduced the computational efort.Compared with the original hull,wave resistance of the optimal hulls was signifcantly reduced for the two larger ships at Froude numbers corresponding to their design speeds.Optimizing the hull of the containerships slightly reduced their wave added resistance and total resistance in regular head waves,while optimization of their hulls hardly afected wave-induced motions. 关键词：Parametric hull Optimization Wave added resistance DAKOTA Surrogate-based global optimization

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静水和波浪中阻力最小的集装箱船参数化船型优化

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