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A new structural optimization method based on the harmony search algorithm
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DOI：10.1016/j.compstruc.2004.01.002.png)
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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.
Keyword:
structural optimization
harmony search
meta-heuristic algorithm
size optimization
continuous variables
truss structures
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