| 基于改进遗传算法的空间网架结构拓扑优化设计 |
| |
| 引用本文： | 林本芳,鹿晓阳,王燕,段英锋.基于改进遗传算法的空间网架结构拓扑优化设计[J].重庆科技学院学报(自然科学版),2010,12(5). |
| |
| 作者姓名： | 林本芳 鹿晓阳 王燕 段英锋 |
| |
| 作者单位： | 山东建筑大学,济南,250101;山东建筑大学,济南,250101;山东建筑大学,济南,250101;山东建筑大学,济南,250101 |
| |
| 摘 要： | 根据工程实际出发,建立离散变量结构拓扑优化模型。针对基本遗传算法(GA)存在的早熟收敛、随机性大、收敛速度慢等不足,从编码方式及遗传算子操作等几个方面对其作了改进,选择操作中引进斐波那契方法,提出一种基于整数编码的改进遗传算法。优化结果表明,这种改进的遗传算法的收敛性得到了很好的改善,提高了计算效率,是有效的结构拓扑优化设计方法。
|
| 关 键 词： | 离散变量 拓扑优化 整数编码 改进遗传算法 |
Topology Optimization of Space Grid Structure Based on Improved Genetic Algorithm |
| |
| LIN Ben-fang,LU Xiao-yang,WANG Yan,DUAN Ying-feng.Topology Optimization of Space Grid Structure Based on Improved Genetic Algorithm[J].Journal of Chongqing University of Science and Technology:Natural Science Edition,2010,12(5). |
| |
| Authors: | LIN Ben-fang LU Xiao-yang WANG Yan DUAN Ying-feng |
| |
| Affiliation: | LIN Ben-fang LU Xiao-yang WANG Yan DUAN Ying-feng (Sh,ong Jianzhu University,Jinan 250101) |
| |
| Abstract: | On the basis of the practical structure design of engineering,a model of structural topology optimization with discrete variables is derived.In view of that the standard genetic algorithm has such frequent shortcomings as premature convergence,over-randomization in iterative process,a integer coded genetic algorithm is proposed,in which from the encoding and genetic operators of its operation is improved,and a Fibonacci method is introduced to improve the genetic operation.The results by exemplification sho... |
| |
| Keywords: | discrete variable topology optimization integercoded improved genetic algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
