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Motions in Waves

Hydrodynamic analysis of the motions of the platform and ships are handled with NAPA Seakeeping.

NAPA Seakeeping uses linear diffraction theory and a 3D panel model of the hull to calculate motions in irregular waves, seakeeping performance and downtime based on scatter diagrams. The hull model used is the same as the one used in the conceptual design, stability analysis and structural modeling.

The new Seakeeping Manager application facilitates the calculation of motions in waves for offshore structures. This also includes the capability to calculate and export wave loads for global structural analysis. Another key feature is the ability to assess seakeeping criteria as defined by the user (e.g. using ISO or NATO standards) to get a clear picture of performance restrictions and an estimate of the total downtime expected.

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