610 FBBとクリギング法を用いた補強板付複合材料パネルの最小重量設計(J02-3 解析・設計の高度化・最適化(3),J02 解析・設計の高度化・最適化)

抄録

Stiffened composite panels are often adopted for structural components of aircraft to avoid the buckling. For the design of stiffened composite panels, optimizations of both stacking sequences and cross-sectional geometry of panels are indispensable. In this paper, an efficient optimal design system of composite structures is proposed. We adopt Kriging method as approximation technique, and integrate it with a low-cost stacking sequence optimization method, the fractal branch and bound (FBB) method. The proposed method is applied to a minimum weight design of a hat-stiffened composite panel subject to a buckling constraint, and its high validity is confirmed.