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Abstract: When the optimization of material selection for components made of multiphase materials is performed with the help of genetic algorithm, the prematurity of algorithm is easy to be produced and the global optimization solution cannot be obtained, because the initial population is very few. An improved genetic algorithm based on “family tree” is put forward, in which “family tree” is used to evaluate the kinship of chromosomes and reduce the probability of chromosome inbreeding. Validation examples show that the problems mentioned previously are solved and the algorithm developed here is suitable for the optimization of material selection of components made of multiphase components.
Key words: Components made of multiphase materials Optimization of material selection Family tree Improved genetic algorithm
CLC No:
TH12
香港研究基金委资助项目(HKU7062/00E).
Received
20070325,
received
in
revised
form
20071108
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