限定近海船の乾舷規定の新設定に対する一評価

概要

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This paper deals with an appraisal of the new proposal for the Freeboard Rule concerning limited greater coasting vessels by using the decision procedure of deck wetness. The decision procedure is mainly constructed with the algorithm of estimating statistically the time lasting period for deck wetness on the ship. The deck wetness is one of the most important factors for safety sailing of a coaster. It generally means the situation in which the relative motion amplitude between deck and wave surface exceeds the freeboard, therefore it is used that the time during which the amplitude remains above a level of freeboard should be appraised on the basis of the statistical theory in this paper. A series of numerical calculations are executed for two different limited greater coastal chemical tankers (199G/T Type II & 499G/T Type II). And it is certified that the present decision procedure of freeboard is practical for planning a type of coaster sailing in the sea.
社団法人日本船舶海洋工学会の論文
2002-03-20