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排水量:$\Delta = \rho \cdot L \cdot B \cdot T \cdot C_b$ [t]
浮心高度:$KB = T/2$(箱型), 稳心半径:$BM = \dfrac{I_{WP}}{V}= \dfrac{B^2}{12\,T\,C_b}$
横稳心高:$GM = KB + BM - KG$
复原力臂(Wall-sided近似):$GZ = \left(GM + \frac{1}{2}BM\tan^2\varphi\right)\sin\varphi$(大角度为简化模型估算)
IMO A.749:$GM \geq 0.15\,\text{m}$, 推荐:$GM \geq 0.35\,\text{m}$