A Component-type Mathematical Model of Heel Moment Acting on a Ship Hull in Steering Motion

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  • 操縦運動で生じる主船体横傾斜モーメントの成分分離型数学モデル
  • ソウジュウ ウンドウ デ ショウジル シュ センタイ ヨコ ケイシャ モーメント ノ セイブン ブンリガタ スウガク モデル

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The authors developed a component-type mathematical model of hydrodynamic forces acting on a ship hull in steering motion and the availability of the model have been confirmed by experimental data. The mathematical model describes longitudinal force X, lateral force Y and yaw moment N for ship motion with 3 degrees of freedom, and it can cover a wide range motion with small to large yaw rate and drift angle. In this paper, we describes a component-type mathematical model of heel moment K composed of lateral force components for ship motion with 4 degrees of freedom. By the model, heel moment can be estimated easily with known hydrodynamic characteristics analyzed from the hydrodynamic forces X, Y and N.

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