改进的蚁群算法及其在桁架结构优化中的应用.pdf

文档介绍：周书敬,等:改进的蚁群算法及其在桁架结构优化中的应用
改进的蚁群算法及其在桁架结构
优化中的应用*
周书敬韩雪
河北工程大学土木工程学院河北邯郸
( , 056038)
摘要
:蚁群算法是优化领域中的一种新型模拟进化算法,具有很强的搜索较优解的能力,其缺点是搜索时间长、容
易出现停滞现象。引用局部搜索能力较强的模拟退火算法对其改进,使其跳出局部最优,发现更高质量解。并将其
成功应用在25杆桁架中,结果表明,基于模拟退火的改进蚁群算法是有效可行的,是解决组合优化问题的有效方法。
关键词:蚁群算法;模拟退火算法;改进;优化;桁架结构
DOI:.1007-
THE IMPROVED ANT COLONY ALGORITHM AND ITS APPLICATION IN
THE OPTIMIZATION OF TRUSS STRUCTURE
Zhou Shujing Han Xue
(School of Civil Engineering,Hebei University of Engineering,Handan 056038,China)
ABSTRACT:Ant colony algorithm is a kind of new simulation optimization in evolutionary field and has a strong
searching ability to search the optimal ,its ings is the long searching time as well as
tending to the phenomenon of paper quotes from the strong local searching ability of simulated
annealing algorithm to improve it,making it jump out of local optimal and found solutions with the higher quality.
Furthermore,it is essful application in 25pole space truss,and the results show that simulated annealing ant
colony algorithm is practicable and effective to solve binatorial optimization problem.
KEY WORDS:ant colony algorithm;simulated annealing algorithm;improvement;optimization;truss structure
概述大允许位移等已知在给定的荷载条件下确定
1 ) , , n
桁架结构具有质量轻、材料利用率高、承载能力杆桁架的节点坐标和截面面积,使结构质量最小。
强制作简便施工方便装配性良好可重复利用等设计变量
、、、、