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基于遗传算法轴对称梯度功能材料优化设计
引用本文:张晓丹,王三强,刘冬青.基于遗传算法轴对称梯度功能材料优化设计[J].北京科技大学学报,2002,24(6):630-632,650.
作者姓名:张晓丹  王三强  刘冬青
作者单位:北京科技大学应用科学学院,北京100083
基金项目:国家自然科学基金;60074034;
摘    要:基于计算数学理论与热弹性原理, 针对环状截面梯度功能材料(FGM)提出了热应力分布公式.以沿坐标轴的最大热应力达到最小为目标,建立了轴对称FGM多目标优化模型. 应用遗传算法实现了优化设计, 获得了稳态温度场下环状截面FGM的最佳材料分布参数.

关 键 词:梯度功能材料  热应力  遗传算法  染色体

Optimization of Axial Symmetrical FGM Using the Genetic Algorithm
ZHANG Xiaodan,WANG Sanqiang,LIU DongqingApplied Science School,UST Beijing,Beijing ,China.Optimization of Axial Symmetrical FGM Using the Genetic Algorithm[J].Journal of University of Science and Technology Beijing,2002,24(6):630-632,650.
Authors:ZHANG Xiaodan  WANG Sanqiang  LIU DongqingApplied Science School  UST Beijing  Beijing  China
Institution:ZHANG Xiaodan,WANG Sanqiang,LIU DongqingApplied Science School,UST Beijing,Beijing 100083,China
Abstract:The distribution of thermal stresses for an empty cylinder of Functionally Graded Materials (FGM) with axial symmetry is obtained, and the Genetic Algorithm (GA) is applied to the optimization problem of material composition for an empty cylinder of FGM with axial symmetry. Based on the thermal elasticity theory and computational method, the numerical calculations are made using a genetic algorithm. The minimum thermal stresses and optimum combination are obtained for an empty cylinder of FGM.
Keywords:functionally graded material (FGM)  thermal stress  genetic algorithm  chromos-ome  
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