| 一种新的多学科协同优化方法及其工程应用 |
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| 引用本文： | 凌昊,程远胜,刘均,曾广武. 一种新的多学科协同优化方法及其工程应用[J]. 中国造船, 2011, 52(2) |
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| 作者姓名： | 凌昊 程远胜 刘均 曾广武 |
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| 作者单位： | 华中科技大学船舶与海洋工程学院,武汉,430074 |
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| 摘 要： | 本文提出了一种新的多学科设计协同优化方法,并将其应用于潜艇分舱设计中.该方法在系统级通过学科级耦合变量的折中来得到系统级耦合变量,采用各学科级目标函数加权和来综合评价设计的优劣,避免了系统级优化过程,解决了标准协同优化算法系统级优化前期不收敛的不足,从而改善了数值稳定性,同时减少了总的计算迭代次数;在学科级目标函数中构建一致性惩罚函数,最终实现耦合变量之间的协调;在约束条件中实施变精度控制,逐步达到预期的精度要求,从而提高收敛性,并减少计算量.本文给出了新算法所得全局最优点即为所求原问题全局最优点的理论证明,并针对典型减速齿轮箱多学科设计优化问题,通过与标准协同优化算法在数值实验中的对比分析,验证了本方法在计算结果的收敛性、数值稳定性及可靠性等方面有优越性,最后通过在潜艇分舱设计中的应用体现了其工程实用价值.
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| 关 键 词： | 多学科设计优化 协同优化算法 潜艇分舱设计 |
An Improved Multidiscipline Collaborative Optimization Algorithm and Its Application in Submarine Subdivision |
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| LING Hao,CHENG Yuansheng,LIU Jun,ZENG Guangwu. An Improved Multidiscipline Collaborative Optimization Algorithm and Its Application in Submarine Subdivision[J]. Shipbuilding of China, 2011, 52(2) |
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| Authors: | LING Hao CHENG Yuansheng LIU Jun ZENG Guangwu |
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| Affiliation: | LING Hao,CHENG Yuansheng,LIU Jun,ZENG Guangwu(School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430047,China) |
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| Abstract: | An improved multidiscipline collaborative optimization algorithm is presented and is applied to submarine subdivision design.In which,at system-level the coupling variables are obtained by averaging the coupling variables obtained from the optimization of the disciplines and the system-level evaluation function is defined as the weighting sum of interdisciplinary objective functions.By doing so,system-level optimization is no longer required.The problem of violated compatibility constraints during the cours... |
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| Keywords: | multidiscipline design optimization collaborative optimization submarine subdivision design |
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