Design slam pressure on bow plating using Ochi-Motter empirical formula - basis for local scantling reinforcement forward of 0.15 L.
Formula
$$ p_{slam} = \tfrac{1}{2} \rho V_r^2 \cdot \left(\frac{\pi}{2 \tan\beta}\right)^2 $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $V_r$ | Relative vertical velocity at impact | m/s | seakeeping analysis |
| $\beta$ | Local deadrise angle | deg | lines plan |
Sources
- Ochi & Motter - SNAME 1973.