... subsea system winterstein naess platform case 2 upstream oil & gas offshore platform artificial intelligence reference point probability distribution wave elevation equation exceedance prob air gap eigenvalue analysis wave crest distribution directional case 1 Prediction...

... process contour line annual probability semi extreme distribution percentile value surge motion standard normal space variability probability winterstein platform subsea system split force spatial reasoning Met-Ocean Contour Lines for Design; Correction for Omitted Variability...

... 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...

... these events. artificial intelligence adequacy typical realization assumption wave height freak wave crest height winterstein equation significant wave height order model distribution function upstream oil & gas component process trulsen rare realization realization order process...

... motions. Slowly varying drift motion creates the largest offset, setdown and smallest air gap, while springing and ringing affect tether extreme tensions and fatigue damage considerably These are associated with the key design parameters. winterstein significant wave height kurtosis upstream...

... crest in this sea state, is also observed. INTRODUCTION The nonlinear asymmetry of steep waves on deep water has been previously documented through several studies in the literature. Among other works, we mention here the full scale data analysis by Marthinsen and Winterstein (1992), and Vinje...

... significant wave height winterstein directional frequency comprehensive discussion multi-directional sea simulation upstream oil & gas subsea system directionality extreme response contour caisson platform seastate simulation spectrum Proceedings of the Eighth (1998) International...

... offshore environments. Recent statistical work has shown that "true" ocean spectra have as many as four peaks (Borgman 1993). significant wave height winterstein seastate tendon subsea system extreme response simulation environmental contour spectrum tlp tendon reliability estimate...

... of the probability distribution) is calculated. The skewness is used as input to a Hermite polynomial transformation model, Winterstein (1988), from which the extreme value of the nonlinear and hence non-Gaussian wave crests can be estimated analytically. The theoretical predictions of the skewness in various sea...