A new structural optimization method based on the harmony search algorithm

被引:798
作者
Lee, KS
Geem, ZW
机构
[1] Natl Inst Stand & Technol, Mat & Construct Res Div, Gaithersburg, MD 20899 USA
[2] Univ Maryland, Dept Civil & Environm Engn, College Pk, MD 20742 USA
关键词
structural optimization; harmony search; meta-heuristic algorithm; size optimization; continuous variables; truss structures;
D O I
10.1016/j.compstruc.2004.01.002
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Most structural optimization methods are based on mathematical algorithms that require substantial gradient information. The selection of the starting values is also important to ensure that the algorithm converges to the global optimum. This paper describes a new structural optimization method based on the harmony search (HS) meta-heuristic algorithm, which was conceptualized using the musical process of searching for a perfect state of harmony. The HS algorithm does not require initial values and uses a random search instead of a gradient search, so derivative information is unnecessary. Various truss examples with fixed geometries are presented to demonstrate the effectiveness and robustness of the new method. The results indicate that the new technique is a powerful search and optimization method for solving structural engineering problems compared to conventional mathematical methods or genetic algorithm-based approaches. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:781 / 798
页数:18
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