船内滞留水を考慮した船体横揺れ運動に関する一検討

概要

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This study investigates validity of a time domain simulation method of rolling motion of a Ro-Ro passenger ship with flooded water expressed by 2-dimensional lump mass concept. Model experiments with different amounts of water on vehicle deck were carried out to confirm effectiveness of the method in regular beam waves. As a result, the simulation method on rolling motion shows reduction of roll response caused by moving water on deck and the values of roll amplitude obtained from the simulation are good agreement with experimental ones. Rolling motion is much affected from motion of water on deck when the ratio of wave height to wave length is large in near ship's natural frequency. Nonlinear motion of ships is occasionally caused by the water in the simulation as same as in the experiments. The present method shows possibility of assessing safety of Ro-Ro passenger ships with damaged holes and flooding water on deck.
社団法人日本船舶海洋工学会の論文
2002-03-25