遗传算法在建筑结构优化设计中的应用

介绍并发展了一种基于非连续设计变量的结构优化设计方法－遗传算法。它把结构优化问题模拟为生物进化问题。通过判断每一代中个体的优化程度进行优胜劣汰，从而产生下一代个体，如此反复迭代来完成优化设计。本文给出了遗传算法的详细计算过程，并提出了三种加快收敛的改进方法。

Genetic Algorithm for the Design of Structural Optimization

in the paper, a simple genetic algorithm(GA)is presented for optimizing structural systems withdiscrete design variables. This method simulates the problems of structural optimization with the creatureevolution. By analyzing the fitness of individuals, this method can remove the less fit individuals and copy themost fit ones to generate next generation. As well as the details of the procedure, three intellectual methodsused to improve the speed of convergence are suggested. To prove the great validity of GA, two problems(12 -- birplane truss and 25 -- bar space miss)are presented and solved.