期刊
COMPOSITE STRUCTURES
卷 143, 期 -, 页码 287-299出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compstruct.2016.02.034
关键词
Discrete optimization; Composite plates; Harmony search
This paper presents the application of the harmony search algorithm (HSA) and some of its variants in the optimization of the stacking sequence of laminated composites. The optimization objective is to maximize the bucking load of a symmetric and balanced laminated plate. Performance and sensitivity to the parameters harmony memory size (HMS), harmony memory consideration rate (HMCR) and pitch adjusting rate (PAR) are determined based on the algorithm apparent reliability. A modified version of the pitch adjustment is proposed and its positive impact on the reliability is demonstrated. The best performance of the basic HSA is obtained using low PAR with high HMS and HMCR. The variants of HSA consider a linear variation of the pitch adjusting rate during the optimization. Increasing PAR reduce the HSA sensitivity to this parameter and lead to fast rise of reliability in the beginning of the optimization and high reliability at the end of the search. Decreasing PAR resulted in excellent reliability for long searches, but the chance to find a global optimum is drastically reduced for short optimizations. The last example demonstrate that HSA is more efficient than other metaheuristic methods, although it is less reliable than a special version of genetic algorithm. (C) 2016 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据