大角度傾斜からの復原

概要

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If the ship is floating in equilibrium in heeled condition owing to the strong wind force or transfer of cargoes, as Fig. 1, she has two positions of equilibrium. One is the position of stable equilibrium, and the other is the position of unstable equilibrium because there is negative slope of the curve of statical stability. When the ship inclined about θ_B which is the angle of the position of unstable equilibrium, if the initial heeled angle is θ_0, in the condition of θ_0≲θ_B she restores to the position of stable equilibrium, and in θ_0≳θ_B she capsizes. In this paper, the restoring motion from about θ_B of a ship was calculated in the both case, constant heeling couple and the heeling couple include periodic disturbance.
社団法人日本船舶海洋工学会の論文
1979-08-20