Asymmetry in sagging and hogging responses of a ship hull
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A4 Artikkeli konferenssijulkaisussa
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Date
2023-08-09
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en
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9
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Proceedings of the 12th International Workshopon Ship and Marine Hydrodynamics, IOP Conference Series: Materials Science and Engineering ; Volume 1288
Abstract
In this paper asymmetry in sagging and hogging of a hull progressing in regular waves is investigated by applying a weakly nonlinear potential flow theory. At first instance ship motions in waves are evaluated using a linear strip-theory yielding transfer functions of ship motions and sectional loads. Then, by assuming time-histories of ship motions the nonlinear part of the Froude-Krylov and restoring forces and moments are evaluated using a panel representation. Linear and weakly nonlinear predictions are compared against available model tests for a roll-on/off (Ro-Pax) ship hull. The results confirm that importance of nonlinearities of restoring and Froude-Krylov part of wave loading on asymmetry of sagging and hogging.Description
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Matusiak, J, Karola, A, Niemelä, A, Mikkola, T & Hirdaris, S 2023, Asymmetry in sagging and hogging responses of a ship hull. in S Hirdaris & D Wan (eds), Proceedings of the 12th International Workshopon Ship and Marine Hydrodynamics., 012022, IOP Conference Series: Materials Science and Engineering, vol. 1288, Institute of Physics Publishing, International Workshop on Ship and Marine Hydrodynamics, Espoo, Finland, 28/08/2023. https://doi.org/10.1088/1757-899X/1288/1/012022