2904 二重構造体のすべり運動における内部構造物の影響に関する検討(G10-1 機械力学・計測制御(1) 非線形・複雑システム,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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The spent fuels from nuclear power stations are stored in a canister which is put in a concrete cask until reprocessed. The cask is generically freely standing on a horizontal floor. So, it is necessary to prevent the cask from overturning and the canister from failure when an earthquake occurs. In this study, we consider the cask-canister system as a dual structure. In an analytical model, the canister and the cask are connected by springs as a dual structure system. The equations of motion are derived for sliding motion when the floor is subjected to the horizontal earthquake excitations. Simulation studies are performed in order to obtain the relative displacement of the cask against the floor and that of the canister against the cask. Based on these results, the effects of the canister in the cask motion are evaluated.
社団法人日本機械学会の論文
2008-08-02