船体運動に対する附加質量および附加慣性モーメントについて
その5 上下揺に対する附加慣性モーメント
1960 年 1960 巻 107 号 p. 91-95
詳細
1960 年 1960 巻 107 号 p. 91-95
A forced oscillation method same as was used in the case of pitching was employed. The effects : of ship forms upon additional mass and damping force are discussed about the values corresponding to the ship's natural frequency.
It was found that the ratio additional mass to ship's own mass increases when Cb and B/L increases, that damping coefficent decreases when Cb, increases and increases when B/L increases. Charts of added mass coefficent and damping coefficent same as for pitching motion are also proposed in this paper.
