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焊點(diǎn)布局的結(jié)構(gòu)多目標(biāo)拓?fù)鋬?yōu)化設(shè)計(jì)
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國家自然科學(xué)基金資助項(xiàng)目(50975046);國家高技術(shù)研究發(fā)展計(jì)劃(863計(jì)劃)資助項(xiàng)目(2008AA04Z123)


Multi-objective Structural Topology Optimization for Spot-welded Layout
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    摘要:

    針對(duì)結(jié)構(gòu)優(yōu)化設(shè)計(jì)中先分解后組合的重復(fù)優(yōu)化問題,,提出一種焊點(diǎn)布局的結(jié)構(gòu)多目標(biāo)拓?fù)鋬?yōu)化方法。在連續(xù)設(shè)計(jì)域中,,給定載荷和約束的情況下,,同時(shí)優(yōu)化整個(gè)結(jié)構(gòu)的拓?fù)淇臻g和幾何造型,并決定子結(jié)構(gòu)間的連接位置和布局形態(tài),。通過有限元分析和基于幾何學(xué)交叉過程的多目標(biāo)遺傳算法得到Pareto解集,,可根據(jù)不同需求確定權(quán)重,,選擇最優(yōu)方案。

    Abstract:

    To solve the two-step process optimization problem, a method for synthesizing multi-objective structural topology optimization based on spot-welded layout was presented.Given an extended design domain with boundary and loading condition, the topology and geometry of an entire structure and the location and configuration of joints was optimized. A mult-objective genetic algorithm coupled with FEM analyses was used to obtain Pareto optimal solutions, the decision could be made for different demands. 

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周澤斌,齋藤和弘,楊建國.焊點(diǎn)布局的結(jié)構(gòu)多目標(biāo)拓?fù)鋬?yōu)化設(shè)計(jì)[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2011,42(8):189-194. Zhou Zebin, Saitou Kazuhiro,Yang Jianguo. Multi-objective Structural Topology Optimization for Spot-welded Layout[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(8):189-194.

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