Severe Wind and Rolling affecting hull strength & stability of Container ship

Purpose of IMO severe wind and rolling criterion is to evaluate the vessel’s ability to survive severe beam seas and wind. Such a situation may be assumed to occur should the vessel lose steering or propulsive capability in a storm, in which case it will likely end up wallowing in beam seas.

If the vessel can roll freely back to leeward under the combination of all of these forces (assumed wind, beam seas and vessels momentum gathered in a roll) without rolling past its range of positive stability (capsize point), or taking on water though open down flooding points (such as the Engine room air inlets), it passes the requirement.

Most cargo stowage and stability calculation software provide Alarms / Highlights for stability conditions not complying with IMO severe wind and rolling criterion. Compliance must be confirmed.

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IMO Intact Stability Criterion for containership

Corrected GoM for Hull Strength and Stability of containership

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