Optimum design of carbon/carbon ablative property based on genetic algorithm
BAI Guang-hui1, MENG Song-he1, LIU Yang1, WEI Li-ming1, JIANG Peng2
1.Cernter for Composite Materials,School of Aerospace and Aeronautics,Harbin Institute of Technology,Harbin 150001,China;2.Division of Science and Technology,Harbin Institute of Technology,Harbin 150001,China
Abstract:
An optimum design model has been proposed for carbon/carbon ablative property based on genetic algorithm,in which the optimum parameters are the number of woven satins,K of fiber bundles,layers per unit height,the average distance of puncture fibers in Z direction and Ply Stacking angle,and the constraint conditions are the density and diameter of carbon fibers and the density of carbon matrix.The results demonstrate that after optimization,the overall height of the ablative carbon/carbon surface is reduced by 56.5%,the standard deviation is reduced by 34.9% and the surface roughness is reduced by 12.6%,which suggests the remarkable improvement of ablative homogeneity.The present investigation can provide practical methodology for the optimum design of carbon/carbon ablative property and the development of new carbon/carbon composites.
Key words: carbon/carbon composites ablative property optimum design genetic algorithm
DOI：10.11916/j.issn.1005-9113.2009.05.013
Clc Number:TP18
Fund:
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Optimum design of carbon/carbon ablative property based on genetic algorithm
本站小编 哈尔滨工业大学/2019-10-23
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