Berthing Energy Calculator

PIANC WG33 • BS 6349: Part 4

Developed by Hrithin
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Vessel & Berthing Parameters
Determines Factor of Safety
Angle of approach
Berthing Speed Configuration
Velocity mode
Yes → V = Vbase ; No,favourable → V = 3×Vbase ; No,unfavourable → V = 2.3×Vbase
-- m/s (effective berthing speed)
Berthing Energy
Normal Energy EN (kJ)-- kJ
Safety Factor 2.0
Abnormal Energy EA (kJ)-- kJ
⚡ Design Berthing Energy (EA)
-- kJ
EA = EN × FoS (abnormal condition)
Base velocity interpolated from PIANC - Displacement vs Velocity Curves for various berthing conditions matrix.
Hydrodynamic & Eccentricity
Block coefficient (Cb)--
Added mass PIANC (CM1)--
Added mass Ueda (CM2)--
Added mass Costa (CM3)--
Final Added mass CM--
Eccentricity factor CE--
Berth config factor CC--
Softness factor CS--
Derived geometry
Underkeel clearance KC--
KC/DL ratio--
Distance R (CoG-contact)--
Angle γ--
Radius gyration K--
Energy breakdown
Base velocity (Vbase)--
Effective Vb--
Normal Energy EN--
Abnormal EA (FoS=2.0)--
Formula: EN = 0.5 × D × Vb² × CM × CE × CC × CS