鋼-鉛-鋼三層円筒の衝撃応答に及ぼす緩衝体の効果

概要

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The author has previously presented the design method for a toroidal shell-type shock absorber for use in radioactive material shipping casks. In this paper, the effects of the shock absorber on the slump of lead in the cask body composed of three layers of steel-lead-steel after 9 m accidental falls are described. Two small models with and without the shock absorber were tested and the difference in their respective slumps was shown. To analyze these results, the friction between the steel and lead layers, and the structural stiffness of the lead layer were investigated. Impact analyses by the use of a one-dimensional lumped-mass nonlinear spring system showed that the slump is greatly influenced both by the relative rigidity of the lead layer to the shock absorber and by the above mentioned friction. Experimental results from a 1/4 scale model of the 100 ton cask were also compared with the results of these calculations.
一般社団法人日本機械学会の論文
1985-05-25