2421 近似等価剛性を用いた中空材構造の有限要素解析(OS7-4 設計と最適化IV-空力特性・積層構造-,OS7 設計と最適化)

概要

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The finite element analysis has been performed for a double-skin hollowed structure by using the approximate equivalent stiffness. The equivalent stiffness for a plate is first given in the second-order polynomial form regarding the design variables by using the response surface method. Finite element analysis for a bending problem is formulated by using the ACM rectangular element, and then a code of finite element method is developed by incorporating the obtained equivalent stiffness. Finally the results acquired by using present method are compared with those acquired by using ANSYS as a commercials software to investigate the applicability of this method. Consequently, the present method can accurately estimate the equivalent stiffness.
2009-10-28