... and analysed. The trapped harmonic wave amplitude is characterized by reflection coefficients and Fourier series coefficients, as well as the parameters of skewness and kurtosis. The results of reflection coefficients are found to agree well with the theoretical predictions. In addition, the linear and weakly...

... in random waves. skewness significant wave height numerical simulation wave parameter nl equation propagation nonlinear schrödinger equation artificial intelligence experiment evolution kurtosis equation machine learning ho method steepness wave height flume numerical method...

... subsea system percentile design tension skewness Reliable Estimation of Short Term Maximum from a Limited Number of Simulations of Offshore Mooring Systems Responses Quentin Derbanne, Martin Dumont Bureau Veritas, Marine & Offshore Division, Research & Development Departments Neuilly-Sur-Seine...

... interaction water region type 1 kurtosis skewness freak wave occurrence second-order nonlinear interaction water depth deeper water region shallower water region nonlinear interaction mori Shallow Water Effects on Freak Wave Occurrence Hiroaki Kashima and Katsuya Hirayama Coastal and Ocean...

... of dynamic structural responses to various sloshing impacts are investigated in detail based on the results of implicit-transient finite element analysis. The dynamic behavior of containment are analyzed for the variation of duration time and skewness, and the peak pressure which represents the sloshing load...

.... The predicted wave skewness and asymmetry at the transmission side are in a good agreement with measurements and empirical equations. The transformations of wave skewness and asymmetry over low-crested impermeable breakwater are also investigated. INTRODUCTION A Low-Crested Breakwater (LCB) provides a number...

... ship responses. The method is based on Time- varying coefficient autoregressive (TVAR) modeling and an extension of the instantaneous power spectral analysis. The proposed method was applied to the time history which indicates the fluctuating skewness, and the peak and its phase angle of bispectra were...

... The bispectral analysis was applied to time history data of a real ship and the non-linear responses were investigated as the second order Volterra system. The results showed that the non-linear pitching motion and the fluctuating skewness were observed in following seas and the skewness...

..., a histogram of surface elevations is not symmetric around the mean value, and a positive skewness increases with the steepness of the sea severity for a given water depth. In recent years, higher order equations of nonlinear Schrödinger type for the ocean waves have been developed. Dysthe (1979) first...

... on the second-order sea surface characteristics are investigated. Particular attention is given to skewness and kurtosis. The two peak Torsethaugen frequency spectrum (1996) currently used by the Norwegian industry is adopted in the analysis. The results for the two-peak spectrum are compared with prediction...

... oscillation and fluid velocity at the bottom were measured. Spatial changes of wave amplitude spectra, flow velocity spectra, mean water level change, skewness and atiltness of the wave profile of the water surface and the bottom velocity oscillations were calculated. It is found that the single submerged...

... to the numerical modeling. second-order diffraction wacyl transfer function platform qtf prediction skewness fine mesh wamit winterstein matrix multicolumn airgap response kurtosis calculation hydrodynamic analysis diagonal mesh Proceedings ofthe Eleventh (2001) International Offshore...

... realizations of the incident wave spectrum. Basic statistical properties (mean, standard deviation, skewness, and kurtosis) have then been computed for the combined record length of 600 sec or 1.4 hours at full scale. 4. TEST RESULTS 4.1 Sample Time Series A short time record from selected ata channels...

... of these nonlinear internal tides are analyzed. It is found that their probability distributions are positively skewed and have higher peaks than the corresponding normal ones. The deviations from the normal are measured by the skewness and kurtosis coefficients. INTRODUCTION Internal waves occur within marine...

... realisation spectra multidirectional wave deviation reflection sea state moored semisubmersible platform response statistics subsea system kurtosis directional surge variability skewness mooring system platform directional spectra fpso standard deviation floating production system slow...

... as sampling variabilities are worked out. Parameters of the study include skewness and kurtosis values, extreme crest heights as well as the asymmetry of individual extreme waves. Comparisons to available theory are made, verifying that the simulations work satisfactorily. For a 100-year sea state with Hs=15m...

... and unidirectionality. Obviously a real sea is neither narrowbanded nor unidirectional and the width of the spectral density and the directional spreading influence the nonlinear characteristics of the waves (skewness, asymmetries, …). A second order directional irregular wave model is used to simulate time series...

... in the proximity of Cape Bon, the southern Tyrrhenian Sea in the proximity of the Italian town of Palmi (30 km north of the Messina Strait), and the Gulf of Valencia (Spain) in front of El Saler beach. wave data deviation seastate engineering trough skewness crest storm elevation frequency highest...

... submerged breakwater, we measured velocity, vorticity (~o = ~ u/oO y - O v/O x) , and skewness ( y = O u/O y + O v/O x) using Particle Tracking Velocimetry (PTV) with video image processing, and performed the numerical simulations using the methods described above. EXPERIMENTAL EQUIPMENTS AND PROCEDURES...

... of approximately 200 m (Glanville et aI. 1991, Horton and Halkyard 1992). mooring system characteristic model test spectral estimate platform design frequency standard deviation small spar artificial intelligence spar platform machine learning skewness spar subsea system upstream oil & gas...