Peak encounter frequency ω_e-peak for a ship at speed V in seas of peak frequency ω_p, heading μ - basis for heading-optimisation to avoid resonance.
Formula
$$ \omega_{e,peak} = |\omega_p - \omega_p^2 V \cos\mu / g| $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $\omega_p$ | Peak wave frequency | rad/s | spectrum |
| $V$ | Ship speed | m/s | log |
| $\mu$ | Heading relative to waves | deg | bridge plot |
Sources
- Lloyd - Seakeeping 1989.