0107 すべりを伴う2自由度連成系における内部構造物の影響(G10-2 機械振動,G10 機械力学・計測制御)

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 free-standing on a horizontal floor. So, it is necessary to prevent the cask from overturning and the canister from breaking 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. The relative displacement of the cask against the floor and the relative displacement of the canister against the cask are obtained, and the effects of the canister in the cask motion are evaluated.
社団法人日本機械学会の論文
2007-09-07