... method can successfully identify the hydrodynamic coefficients of roll motion using the vibration responses of ships in irregular waves. INTRODUCTION The rolling motion of a ship under wave excitation is an important factor affecting the safety and operability of the ship; therefore, accurately...

... ABSTRACT Effects of moving loads and wave excitations on a 900-m-long SFT (submerged floating tunnel) are presented and discussed. Floater-mooring coupled dynamic analysis is done by a time-domain numerical simulation program. Hydro-elasticity of the tunnel and mooring lines are considered...

... turbine with tension leg platform foundation is put forward to illustrate dynamic properties of the support structure. Optimization design aiming at avoiding resonance of wind turbines and sum-frequency of wave excitation is applied to define principal dimensions of the optimal model in moderately deep...

... Abstract This paper aims to present an extended version of the classic linear wave excitation force theory. Linear wave theory implies that the wave load is applied in the referential state of the structure. In reality, the load is acting in the dynamically altered state. In the classic...

... and frequencies. ocean energy wave excitation renewable energy artificial intelligence social responsibility sustainable development gkika reservoir simulation coefficient nonlinear response amplitude operator response amplitude operator nrao dynamical system excitation application amplitude...

... interest, as well as the overall response of the coupled hydro-thermodynamic model under irregular sea wave excitation. free surface velocity potential renewable energy production monitoring operation wave excitation production control water column front wall frequency owc dynamic...

...). upstream oil & gas prediction spectra pontoon dynamic tension simulation nacelle acceleration surge artificial intelligence natural frequency turbine environmental condition subsea system wave condition displacement tendon nonlinear analysis frequency wave excitation wind turbine...

... to be deployed offshore at the commercial stage, in arrays of several units called wave farms . wave excitation wave energy converter optimization problem matrix absorption irregular wave converter clément control strategy artificial intelligence energy absorption budal excitation social...

... line are compared under irregular oscillations to ensure similarity under realistic sea conditions. The tensions of a mooring line were recorded when the semisubmersible platform was oscillated under regular or irregular wave excitation in the horizontal plane. The semi-submersible platform was model...

... ABSTRACT This paper describes the development of an analysis model, which is suitable for the evaluation of the hull girder response of ships due to waves including torsion effect. To this aim, springing effects on hull girder was re-evaluated including non-linear wave excitations...

... heave motion heave nayfeh multiple scale natural frequency internal resonance spar platform natural period regular wave wave excitation subsea system frequency An Experimental Study for Mooring Effects on the Stability of Spar Platform Jun B. Rho and Hang S. Choi Department of Naval...

.... It is comparatively easy to reduce response in the resonant period to operate damping. On the other hand, there are few methods for pitch motion reduction. clearance gap wave excitation fpso drag force coefficient pitch motion reduction horizontal msboard motion reduction exp force coefficient...

... taking into account the non- Gaussianity of the wave excitation and the quality of the higher-order spectral estimators used in determining the Volterra transfer functions. Previously [Kim and Powers, 1988], we have shown the importance of taking into account the non-Gaussianity of the irregular wave...

... Consider a hull advancing with constant mean velocity and submitted to sea waves excitation. The potential flow around the hull is usually studied from the viewpoint of a moving. frame with constant velocity, equal to the mean forward velocity of the hull. A uniform stream at infinity is then observed...

... coefficients associated with both the wave excitations and response of the body are utilized in conjunction with the equations of motion in order to determine the response of a free-floating body to wave excitation. In addition, experiments are performed with a floating offshore model in a wave tank of 18.3 m...

... of this paper is illustrated by using it to quantify the linear and quadratically nonlinear dynamical response of TLP's to random non Gaussian sea wave excitation, and by comparing the performance of the conventional non-orthogonal Volterra model with that of the new conditioned orthogonal model. INTRODUCTION...

... (e.g., quadratic and cubic transfer functions). Furthermore, they can be estimated experimentally from input-output time series data using polyspectra, such as auto- and cross-power spectra, bispectra, and trispectra. artificial intelligence wave excitation machine learning application wave...