| 基于响应面的可变复杂度方法在桁架式Spar平台方案设计中的应用 |
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| 引用本文： | 姜哲,崔维成,黄小平.基于响应面的可变复杂度方法在桁架式Spar平台方案设计中的应用[J].船舶力学,2010,14(7):771-781. |
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| 作者姓名： | 姜哲 崔维成 黄小平 |
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| 作者单位： | 上海交通大学海洋工程国家重点实验室,上海,200030;中国船舶科学研究中心,江苏,无锡,214082 |
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| 摘 要： | 多学科设计优化在实际应用中,几乎都采用了可变复杂度方法(variable-complexity method,VCM)来平衡计算成本和计算精度.然而,VCM通常需要计算大量的初始样本点以保证精度.为降低VCM对初始样本点的依赖,文中提出了一种基于响应面更新的可变复杂度方法.以桁架式Spar平台的多学科设计优化为例,首先根据试验设计选取样本点,采用数值方法计算平台的各项性能,建立了响应面模型;应用协同优化算法求解,并通过响应面的不断更新提高精度,在此基础上应用可变复杂度方法校正响应面分析结果.计算结果表明:基于响应面更新的可变复杂度方法可在较少初始样本点情况下,获得较高精度的计算结果.
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| 关 键 词： | 多学科设计优化 可变复杂度方法 响应面更新方法 桁架Spar平台 |
Response surface based variable-complexity method for optimization of Truss Spar concept design |
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| JIANG Zhe,CUI Wei-cheng,HUANG Xiao-ping.Response surface based variable-complexity method for optimization of Truss Spar concept design[J].Journal of Ship Mechanics,2010,14(7):771-781. |
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| Authors: | JIANG Zhe CUI Wei-cheng HUANG Xiao-ping |
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| Institution: | JIANG Zhe1,CUI Wei-cheng 2,HUANG Xiao-ping1(1 State Key Laboratory of Ocean Engineering,Shanghai Jiao Tong University,Shanghai 200030,China,2 China Ship Scientific Research Center,Wuxi 214082,China) |
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| Abstract: | In the application of multidisciplinary design optimization(MDO),variable-complexity method(VCM) was widely used to balance the computational efficiency and accuracy.However,VCM generally requires large number of calculations for initial sampling points to ensure precision.In order to overcome such a deficien-cy,an improved VCM strategy utilizing adaptive response surface method is proposed.The strategy is illus-trated in the application of MDO to Truss Spar concept design.In this study,multidisciplinary nu... |
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| Keywords: | multidisciplinary design optimization variable-complexity method adaptive response surface method Truss Spar |
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