基于自适应遗传算法的单层球面网壳优化分析

采用改进的自适应遗传算法来解决单层球面网壳结构构件截面优化问题,并采用VC 语言编写了相应的自适应遗传算法和有限元计算程序,可以实现单层球面网壳结构的自动优化设计。设计了不同类型、跨度和矢跨比的网壳优化算例,以检验基于自适应遗传算法的单层球面网壳的优化效果,结果表明基于自适应遗传算法思想而编制的优化程序原理简单,容易收敛,结果可靠,优化效果良好。

Optimum Analysis of Single-Layer Reticulated Domes Based on Adaptive Genetic Algorithm

The structure component's section optimization of singlelayer reticulated domes is solved with adaptive genetic algorithm.The program of adaptive genetic algorithm and finite element is written in VC~ language according to the introduced algorithm,which can realize automatic optimum design of single-layer reticulated domes.To verify the effect of optimum of single-layer reticulated domes based on adaptive genetic glgorithm,some optimum examples of single-layer reticulated domes are designed,whose type,span,and the ratio of high and span are different.The optimum result indicated that the optimum design program has the character of simple principle,easy convergence,and reliable effect.