Orcawave Damping Sweep Typical Values By Vessel Type

Sub-skill of orcawave-damping-sweep: Typical Values by Vessel Type (+1).

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Typical Values by Vessel Type (+1)

Typical Values by Vessel Type

Vessel Type Roll Damping (% critical) Notes
FPSO 5-10% With bilge keels
Tanker 3-8% Varies with loading
Semi-submersible 8-15% Large radiation damping
Spar 3-6% Strake-dependent
Barge 2-5% Low damping

By Loading Condition

Condition Typical Adjustment
Full load Base value
Ballast -20% to -30%
Partial load -10% to -20%
Transit +10% to +20% (hull exposure)

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