船舶の衝突における吸収エネルギーの評価法の研究 : 耐衝突構造を持つ被衝突船におけるMinorskyの式の有効性

概要

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To verify the effectiveness of Minorsky's formula that is used in the current regulation of ship with anti-collision structure, the simplified analysis based on the rigid-plastic analysis is developed. The collision of test ship with T2 tanker and Suezmax class tanker is analyzed, and it was shown that the Minorsky's formula, which assumes same collapse length for striking and struck ship, gives incorrect estimation of the energy balance when the strength of ship bow and side has big difference. Also, the results are compared with those by dynamic FEM analysis, and good agreements are observed. It was shown that the simplified analysis method is an effective tool in the early design stage.
社団法人日本船舶海洋工学会の論文