基于遗传算法的结构可靠度分析方法

STRUCTURE RELIABILITY ANALYTICAL METHOD BASED ON GENETIC ALGORITHM

针对结构发展需要,介绍一种智能化的可靠度分析方法--遗传算法(GAM).通过一个例题,使用Matlab语言编程仿真,分析GAM求解结构可靠度的可行性,详细阐述采用十进制编码的实现方法,以及求解约束收敛适应度的自适应调整方法,经对淘汰法则的优化,提高求解的收敛速度.

In accordance with needs structure developing, a kind analytical method of reliability with intellectual ability Genetic Algorithm method（GAM） is indicated. By simulation with Matlab in an example, The workability to solve the problem structure reliability with GAM is analysed in this paper, the methods of decimal system coding and realizion are indicated, also the fitness self-fit adjusting on a restriction condition and improved selection principal to improve efficiency of GAM are presented.