GAを用いた複合材料の積層構成最適化における応答曲面の実験計画法

概要

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Designs of experiments to obtain approximate response surfaces of laminated composites are described in the present study. For genetic algorithms for stacking sequence optimizations, a large number of evaluations require high computational cost, and the evaluation cost can be reduced by approximation with response surfaces. For the sesponse surface of stacking sequence optimizations, lamination parameters are adopted as variables of the entire design space instead of the ply angles. In the present study, a new method of design of experiments is proposed and investigated in detail. For most of the analysis tools, stacking sequences are the demanded input date and lamination parameters can not be applied directly. Therefore, in the present study, lamination D-optimal design is proposed and applied to the stacking sequence optimizations of the problem of maximization of buckling load of a composite cylinder. The new design of experiment is a set of stacking sequemces selected from the candidate stacks using a D-optimal design. As a result, the lamination D-optimal design is shown to be effective for the design of experiments of the response surfaces.
社団法人日本機械学会の論文
2000-05-25