104 種々の座屈形態を考慮した積層板の多目的最適化(材料力学・材料強度に関する新展開I)(オーガナイズドセッション(a)材料力学・材料強度に関する新展開)

概要

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A new multi-objective design approach is proposed for handling many different buckling patterns in the design problem of laminated composite plates. First, a number of various buckling eigenvalues are calculated for some discretized fiber angles of the plate by the Ritz method. These eigenvalues are taken to be the object functions. The second step is based on statistical treatment of the data. For each object function, the calculated eigenvalues for different fiber angles are normalized by the maximum value and then the deviated values are determined on the assumption that the eigenvalues are subjected to the Gaussian distribution with the standard deviation of 10 and the average of 50. The optimal fiber angle θ opt, within the discretized values of fiber angles, is determined by examining the sum of the deviated values of all the object functions.
一般社団法人日本機械学会の論文
2000-09-25