Application of time domain methods for marine hydrodynamic and hydroelasticity analyses of floating systems

KARA, Fuat (2021). Application of time domain methods for marine hydrodynamic and hydroelasticity analyses of floating systems. Ships and Offshore Structures.

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Abstract

The application of transient three-dimensional numerical code ITU-WAVE is presented for the prediction of hydrodynamic characteristics of floating bodies. The time histories of unsteady motions are directly presented with respect to Impulse Response Functions (IRFs). First-order steady forces of wave-resistance, sinkage force and trim moment are solved as the steady-state limit of surge radiation IRF. The numerical prediction of second-order mean force is presented using near-field method based on the direct pressure integration. The hydrodynamic and structural parts are fully coupled through modal analysis for the solution of hydroelastic analysis. A stiff structure is then studied assuming that contributions of rigid body modes are much bigger than elastic modes. A discrete control of latching is used to increase the bandwidth of the efficiency of Wave Energy Converters (WEC). ITU-WAVE numerical results for different floating bodies show satisfactory agreements compared to analytical, other numerical and experimental results.

Item Type:	Article
Uncontrolled Keywords:	0911 Maritime Engineering
Identification Number:	https://doi.org/10.1080/17445302.2021.1937798
SWORD Depositor:	Symplectic Elements
Depositing User:	Symplectic Elements
Date Deposited:	28 May 2021 12:30
Last Modified:	29 Jun 2021 08:00
URI:	https://shura.shu.ac.uk/id/eprint/28694

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