4 流体連成動的座屈解析プログラムの開発とその検証

概要

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Liquid-filled storage tanks or reactor vessels which are subjected to horizontal seismic loads may fail by buckling. In order to clarify the dynamic buckling characterisitics of the tanks, numerical analysis can be a useful tool. However, it generally takes an enormous amount of computer time to execute dynamic buckling analysis including fluid-structure interaction by finite element mehod. The purpose of this study is to validate the applicability of the newly developed FEM program to this specific problem. This paper presents experimental results on the elastic buckling of cantilevered cylindrical shell filled with water subjected to harmonic excitations. In addition, numerical simulation were preformed using the computer program in the conditions corresponding to the experiments. As a result, it was confirmed that dynamic response analyses of the liquid-filled thin cylindrical shell in the pre- and post-buckling stages are possible by using the new FEM program within reasonable computer time.
一般社団法人日本建築学会の論文
1997-03-20