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遗传算法在桁架结构优化设计中的应用
引用本文:马光文,王黎.遗传算法在桁架结构优化设计中的应用[J].工程力学,1998,15(2):38-44.
作者姓名:马光文  王黎
作者单位:四川联合大学水利系
摘    要:本文提出桁架结构系统优化设计的新方法—遗传算法。它与常规化算法的不同之处在于从多个初始点开始寻优,并采用交迭和变异算子避免过早地收敛到局部最优解,可获得全局最优解,且不受初始值影响。该算法不必求导计算,编程简单、快捷,尤其适用于具有离散变量的结构优化设计问题。

关 键 词:最优化设计,结构工程,离散变量

OPTIMIZATION OF TRUSS STRUCTURES USING GENETIC ALGORITHM
Ma Guangwen,Wang Li.OPTIMIZATION OF TRUSS STRUCTURES USING GENETIC ALGORITHM[J].Engineering Mechanics,1998,15(2):38-44.
Authors:Ma Guangwen  Wang Li
Abstract:This paper presents a genetic algorithm (GA) for optimizing truss structural system with discrete design variables. It differs from existing mathematical programming methods in that the GA uses a population of initial points in contrast to the single-point approach by the traditional ones. The optimal solution by GA is no longer dependent on initial search values, and will guarantee a global optimum. Derivative calculation is not necessary and computer program is simple. Genetic algorithm is best suited for structural optimizations which have discrete variables.
Keywords:optimizing design  structural engineering  discrete variables  
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