Bow-to-side collision kinetic energy at impact: E = ½ · M_eff · V² between two ships of different size.
Formula
$$ E = \tfrac{1}{2} M_\text{eff} V_\text{rel}^2, \quad M_\text{eff} = \frac{M_1^* \cdot M_2^*}{M_1^* + M_2^*} $$Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $M_1^*, M_2^*$ | Effective (added) masses | t | displacement + added mass |
| $V_\text{rel}$ | Relative speed at impact | m/s | operating condition |
Sources
- DNV-RP-C204 - Structural design against accidental loads.