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《Chinese Quarterly of Mechanics》 2008-03
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Multi-objective Topology Optimization of Continuum Structure using Improved Genetic Algorithm

GE Pei-ming LI Yao-chen (School of Aerospace Engineering and Applied Mechanics,Tongji University,Shanghai 200092,China)  
Multi-objective topology optimization of continuum structure is a hard problem in structure opti- mization field.An improved SPEA2 algorithm was proposed.A coding method called four direction chain- code was used to present structure topology,which can make clear toplogy and remove fuzzy boundary and chessboard.A new concept"quality vector"was presented,which makes it possible to compare two dif- ferent topologies.And the machine learning was integrated with the new method,guiding upcoming cal- culation to reduce repetitive part using previous results,which results in the total calculation was reduced heavily.New algorithm was applied successfully to both cantilever and simple beam cases,and the Pareto solutions are with high quality and good distribution.
【CateGory Index】: O224
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Chinese Journal Full-text Database 1 Hits
1 GE Pei-ming~~1,CHEN Qiu~~1,PENG Wei~~2(1.Department of Applied Mechanics and Engineering,Southwest Jiaotong University,Chengdu 610031,China;2.Department of Computer Science & Technology,University of Science and Technology of China,Hefei 230027,China);Topology Optimization of Continuum Structures Using Case-Based Learning Genetic Algorithms[J];Chinese Quarterly of Mechanics;2006-03
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