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多目标模糊优化方法及其在工程设计中应用
引用本文:张晓丽,杨建强,常春影,董威.多目标模糊优化方法及其在工程设计中应用[J].大连理工大学学报,2005,45(3):374-378.
作者姓名:张晓丽  杨建强  常春影  董威
作者单位:大连理工大学,机械工程学院,辽宁,大连,116024
摘    要:应用多目标模糊优化方法,以工程设计中桥式起重机箱形主梁设计为实例,建立了桥式起重机箱形主梁多目标模糊优化设计的数学模型,构造了模糊目标集,确定了多目标函数的模糊性和约束的模糊性,并应用最优水平截集法实现了模糊约束到实数论域上的集合转换,从而用遗传算法寻求到子目标函数在可行域空间的最优解和约束最优值.优化结果表明,在工程设计中应用多目标模糊优化方法是可行和有效的.

关 键 词:多目标优化  模糊方法  桥式起重机  箱形主梁  遗传算法
文章编号:1000-8608(2005)03-0374-05

Multi-objective fuzzy optimization method and its practical application to engineering design
ZHANG Xiao-li,YANG Jian-qiang,CHANG Chun-ying,DONG Wei.Multi-objective fuzzy optimization method and its practical application to engineering design[J].Journal of Dalian University of Technology,2005,45(3):374-378.
Authors:ZHANG Xiao-li  YANG Jian-qiang  CHANG Chun-ying  DONG Wei
Abstract:Based on the method of multi-objective fuzzy optimization and the overhead traveling crane design, a mathematical model of fuzzy optimization for main box beam section is established. A fuzzy goal anthology is constructed. The fuzziness of multi-objective function and constraints is defined. The transformation of the fuzzy constraints set to normal constraints set in real number domain is realized by applying optimal level cut set method. The optimal solution and optimal constraint value of sub-objective function in the feasible field are found using the genetic algorithms. The optimal result for main box beam sections of an overhead traveling crane shows that the multi-objective fuzzy optimization method is feasible and valid in engineering design.
Keywords:multi-objective optimization  fuzzy method  overhead traveling crane  main box beam  genetic algorithm  
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