The influence of nonlinearities on the symmetric hydrodynamic response of a 10, 000 TEU Container ship. (1st January 2016)

• Record Type: Journal Article
• Authors: Hirdaris, S.E.; Lee, Y.; Mortola, G.; Incecik, A.; Turan, O.; Hong, S.Y.; Kim, B.W.; Kim, K.H.; Bennett, S.; Miao, S.H.; Temarel, P.
• Is Part Of: Ocean engineering. Volume 111(2016)
• Page Start: 166
• Page End: 178
• Publication Date: 2016-01-01
• Subjects: AP Aft perpendicular -- BC Boundary conditions -- BEM Boundary element method -- DES Detached Eddy Simulations -- DNS Detached Navier Stokes -- RANS Reynolds Averaged Navier Stokes equations -- FD Frequency Domain methods -- FEA Finite Element Analysis -- GFM Green function methods -- IRF Impulse Response Functions -- LCG Longitudinal Centre of Gravity from AP (m) -- LOA Length overall -- LBP Length between perpendiculars -- MEL Mixed Euler–Lagrange method -- NL Nonlinear methods -- RAO Response Amplitude Operator -- TD Time domain methods -- URANS Unsteady RANS -- VBM Vertical bending moment -- VSF Vertical shear force -- 2D Two dimensional -- 3D Three dimensional -- 2D HYEL 2D Linear hydroelasticity method -- 2D LAMP 2D Large amplitude motion method -- 3D LINEAR 3D Linear hydrodynamic method -- 3D PNL 3D partly nonlinear method; Container ships -- Hydrodynamics -- Nonlinearities -- Ship motions -- Wave loads; Ocean engineering -- Periodicals; Ocean engineering; Periodicals; 620.4162
• DOI: 10.1016/j.oceaneng.2015.10.049
• Languages: English
• ISSNs: 0029-8018

Abstract

Abstract: The prediction of wave-induced motions and loads is of great importance for the design of marine structures. Linear potential flow hydrodynamic models are already used in different parts of the ship design development and appraisal process. However, the industry demands for design innovation and the possibilities offered by modern technology imply the need to also understand the modelling assumptions and associated influences of nonlinear hydrodynamic actions on ship response. At first instance, this paper presents the taxonomy of different Fluid Structure Interaction (FSI) methods that may be used for the assessment of ship motions and loads. Consequently, it documents in a practical way the effects of weakly nonlinear hydrodynamics on the symmetric wave-induced responses for a 10, 000TEU Container ship. It is shown that the weakly nonlinear FSI models may be useful for the prediction of symmetric wave-induced loads and responses of such ship not only in way of amidships but also at the extremities of the hull. It is concluded that validation of hydrodynamic radiation and diffraction forces and their respective influence on ship response should be especially considered for those cases where the variations of the hull wetted surface in time may be noticeable. Highlights: We present the taxonomy of FSI methods for the assessment of ship motions and wave loads. Nonlinear FSI models may predict wave-induced ship responses in way of the extremities of the hull. Hydrodynamic idealisations should be validated by model tests and/or full scale measurements. Hydrodynamic radiation & diffraction forces should be carefully considered in nonlinear FSI.