Beam force

Input(s)

H: Significant Wave Height ( $\mathrm{ft}$ )

B: Vessel Beam Length (ft)

L: Vessel Length $(\mathrm{ft})$

A: Wave Period (s)

D: Vessel Draft (ft)

Output(s)

$F_{b a}$: Beam Force When a Is Greater Than $0.642 *(\mathrm{~b}+2 * \mathrm{~d}) 0.5\left(f t^{5} / \mathrm{s}\right)$

$F_{b b}$: Beam Force When a Is Lower Than $0.642 *(\mathrm{~b}+2 * \mathrm{~d}) 0.5\left(f t^{5} / \mathrm{s}\right)$

Formula(s)

$$ \begin{gathered} F_{b a}=\frac{2.1 *\left(H^{2}\right) *\left(B^{2}\right) * L}{A^{4}} \\ F_{b b}=\frac{2.1 *\left(H^{2}\right) *\left(B^{2}\right) * L}{\left(1.28 *\left((B+2 * D)^{0.5}\right)-A\right)^{4}} \end{gathered} $$

Reference(s)

Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015. Houston, Texas, Page: 457.