5423 設計初期段階における捩り荷重を受ける中実構造体の形状設計(G12-1 設計と最適化,G12 設計工学・システム)

概要

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In this paper, we present a numerical method to optimize the solid section shape of structures, which is often needed at the early stage in the structural designs of automotives and airplanes and so on. The solid section area is minimized under the constraints of section properties such as torsional constant, centroid and shear center. Forces, which are set as the design variables, to vary the solid section are applied to all nodes on the design boundary. All internal nodes are also mapped to the updated shape by the stiffness equation maintaining the initial mesh topology. The optimization problem is solved using the sequential quadratic programming. The validity of this method is verified to obtain the optimal shape of solid section under the constraints of the moment of inertia of area through examples.
社団法人日本機械学会の論文
2006-09-15