小型貨物船のスラミングによる応答と崩壊強度 : 第2報 : ホギングモーメントによる崩壊強度

概要

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In the first report, it is clarified that a small cargo ship of length 48m in ballast condition is subjected to large hogging moment due to bottom slamming. In this report, the strength of the ship at S. S. 7 against hogging moment is estimated with the help of experiments for a structural component. The collapsing strength of S. S. 7 is significantly reduced by the existence of bottom corrugations which may be caused by slamming previously. Bottom corrugations reduce the effective stiffness of the bottom plates and also the section modulus I/y for bottom. Compared with the value of hogging moment caused by slamming, the strength of the ship may be insufficient for preventing the structural failure of the ship, although it is much larger than the required strength against the bending moment expected by the linear conventional theory.
社団法人日本船舶海洋工学会の論文