A free surface corrected lumped parameter model for near-surface horizontal maneuvers of underwater vehicles in waves

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dc.contributor.authorLambert, Williamen
dc.contributor.authorMiller, Lakshmien
dc.contributor.authorBrizzolara, Stefanoen
dc.contributor.authorWoolsey, Craig A.en
dc.date.accessioned2024-11-06T15:07:22Zen
dc.date.available2024-11-06T15:07:22Zen
dc.date.issued2023-06en
dc.description.abstractWe provide theory and results obtained from the application of a 6-degree of freedom lumped parameter maneuvering model (LPMM) able to predict the maneuvering motions of underwater vehicles navigating at shallow depth below free surface waves. The parameters of the maneuvering model are identified using a combination of steady and unsteady captive maneuvers, simulated with high fidelity computational fluid dynamic (CFD) methods. This work focuses on correcting the LPMM, which is accurate for deep water motions, to account for free surface effects. A frequency domain strip theory method is used to account for changes in the added mass due to free surface proximity, to calculate memory forces, and to estimate wave excitation forces while a 3D time domain boundary element method is used to predict steady-state wave making forces. The result is a combined maneuvering and seakeeping model for underwater vehicles operating at shallow depths below the free surface. Near-surface horizontal zig-zag motion predictions in both calm water and under waves reveal the importance of including the free surface as vehicle trajectories at shallow depths differ substantially from those at deeper submergences for identical maneuvering inputs.en
dc.description.sponsorshipThe authors gratefully acknowledge ONR support under Grant No. N00014-20-1-2621.en
dc.description.versionAccepted versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.1016/j.oceaneng.2023.114364en
dc.identifier.orcidWoolsey, Craig A. [0000-0003-3483-7135]en
dc.identifier.urihttps://hdl.handle.net/10919/121563en
dc.identifier.volume278en
dc.language.isoenen
dc.publisherElsevieren
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.titleA free surface corrected lumped parameter model for near-surface horizontal maneuvers of underwater vehicles in wavesen
dc.title.serialOcean Engineeringen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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