Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.21/1359
Título: GA topology optimization using random keys for tree encoding of structures
Autor: Madeira, José Firmino Aguilar
Pina, H. L.
Rodrigues, H. C.
Palavras-chave: Structural Topology Design
Eigenfrequency Design
Optimization
Genetic Algorithms
Graph Theory
Design
Eigenfrequencies
Shape
Data: Jan-2010
Editora: Springer
Citação: Madeira J F A, Pina H L, Rodrigues H C. GA topology optimization using random keys for tree encoding of structures. Structural and Multidisciplinary. 2010; 40 (1-6): 227-240.
Relatório da Série N.º: 1-6;
Resumo: Topology optimization consists in finding the spatial distribution of a given total volume of material for the resulting structure to have some optimal property, for instance, maximization of structural stiffness or maximization of the fundamental eigenfrequency. In this paper a Genetic Algorithm (GA) employing a representation method based on trees is developed to generate initial feasible individuals that remain feasible upon crossover and mutation and as such do not require any repairing operator to ensure feasibility. Several application examples are studied involving the topology optimization of structures where the objective functions is the maximization of the stiffness and the maximization of the first and the second eigenfrequencies of a plate, all cases having a prescribed material volume constraint.
Peer review: yes
URI: http://hdl.handle.net/10400.21/1359
ISSN: 1615-147X
Aparece nas colecções:ISEL - Eng. Mecan. - Artigos

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