Journal
STRUCTURAL AND MULTIDISCIPLINARY OPTIMIZATION
Volume 23, Issue 4, Pages 259-267Publisher
SPRINGER
DOI: 10.1007/s00158-002-0188-0
Keywords
particle swarm optimization; size optimization; shape optimization
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Shape and size optimization problems instructural design are addressed using the particle swarm optimization algorithm (PSOA). In our implementation of the PSOA, the social behaviour of birds is mimicked. Individual birds exchange information about their position, velocity and fitness, and the behaviour of the flock is then influenced to increase the probability of migration to regions of high fitness. New operators in the PSOA, namely the elite velocity and the elite particle, are introduced. Standard size and shape design problems selected from literature are used to evaluate the performance of the PSOA, The performance of the PSOA is compared with that of three gradient based methods, as well as the genetic algorithm (GA). In attaining the approximate region of the optimum, our implementation suggests that the PSOA is superior to the GA, and comparable to gradient based algorithms.
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