ABS - 133
GUIDE FOR THE ASSESSMENT OF PARAMETRIC ROLL RESONANCE IN THE DESIGN OF CONTAINER CARRIERS
| Organization: | ABS |
| Publication Date: | 1 April 2019 |
| Status: | active |
| Page Count: | 63 |
scope:
General
Parametric roll resonance in longitudinal (head and following) seas is observed as a significant amplification of roll motions, which may become dangerous to the ship, its cargo and crew. This phenomenon is related to the periodic change of stability as the ship moves in longitudinal waves at a speed when the ship's wave encounter frequency is approximately twice the rolling natural frequency and the damping of the ship to dissipate the parametric roll energy is insufficient to avoid the onset of a resonant condition.
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