The reduced order model at the heart of the APS Environmental and Ship Motion Forecasting system must retain the accuracy of a higher fidelity seakeeping code while simultaneously meeting computational speed required to provide motion forecasts minutes into the future for two or more ships operating in close proximity. We describe the mathematical formulation of the reduced order model and efficient modeling techniques to construct databases of wave force Response Amplitude Operators and Impulse Response Functions before presenting comparisons between the reduced order model, a higher fidelity seakeeping code called AEGIR, and experimental data for the R/V Melville and two multi-ship configurations.
- Ocean, Offshore and Arctic Engineering Division
Reduced Order Model for Motion Forecasts of One or More Vessels
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Milewski, WM, Connell, BSH, Vinciullo, VJ, & Kirschner, IN. "Reduced Order Model for Motion Forecasts of One or More Vessels." Proceedings of the ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. Volume 11: Prof. Robert F. Beck Honoring Symposium on Marine Hydrodynamics. St. John’s, Newfoundland, Canada. May 31–June 5, 2015. V011T12A057. ASME. https://doi.org/10.1115/OMAE2015-42421
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