A Chaotic Approach of Differential Evolution Optimization Applied to Loudspeaker Design Problem
Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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Data(s) |
14/10/2013
14/10/2013
2012
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Resumo |
Over the past few years, the field of global optimization has been very active, producing different kinds of deterministic and stochastic algorithms for optimization in the continuous domain. These days, the use of evolutionary algorithms (EAs) to solve optimization problems is a common practice due to their competitive performance on complex search spaces. EAs are well known for their ability to deal with nonlinear and complex optimization problems. Differential evolution (DE) algorithms are a family of evolutionary optimization techniques that use a rather greedy and less stochastic approach to problem solving, when compared to classical evolutionary algorithms. The main idea is to construct, at each generation, for each element of the population a mutant vector, which is constructed through a specific mutation operation based on adding differences between randomly selected elements of the population to another element. Due to its simple implementation, minimum mathematical processing and good optimization capability, DE has attracted attention. This paper proposes a new approach to solve electromagnetic design problems that combines the DE algorithm with a generator of chaos sequences. This approach is tested on the design of a loudspeaker model with 17 degrees of freedom, for showing its applicability to electromagnetic problems. The results show that the DE algorithm with chaotic sequences presents better, or at least similar, results when compared to the standard DE algorithm and other evolutionary algorithms available in the literature. National Council of Scientific and Technologic Development of Brazil-CNPq [303963/2009-3/PQ, 306151/2009-0/PQ, 478158/2009-3] National Council of Scientific and Technologic Development of BrazilCNPq |
Identificador |
IEEE TRANSACTIONS ON MAGNETICS, PISCATAWAY, v. 48, n. 2, supl. 4, Part 1, pp. 751-754, FEB, 2012 0018-9464 http://www.producao.usp.br/handle/BDPI/34325 10.1109/TMAG.2011.2174204 |
Idioma(s) |
eng |
Publicador |
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PISCATAWAY |
Relação |
IEEE TRANSACTIONS ON MAGNETICS |
Direitos |
restrictedAccess Copyright IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
Palavras-Chave | #ELECTROMAGNETICS #EVOLUTIONARY COMPUTATION #OPTIMIZATION #ELECTROMAGNETIC DEVICES #GLOBAL OPTIMIZATION #ENGINEERING, ELECTRICAL & ELECTRONIC #PHYSICS, APPLIED |
Tipo |
article original article publishedVersion |