... the full set of "Fklmn(O,O,O) cumulants. Therefore the computational savings of the modal independence approach, as defined here, are not very considerable. - ,. Verification studies "ia simul.atiOll The sea state used in the verification study was characterised by a Pierson Moskowitz spectrum...

... offshore tech dynamic equation simulation frequency procedure sea state tension response fatigue damage htfd approach spectrum mooring system assumption Plouedmgs of the FII st (1990 J EU/ opean OffshOi e Mecham(s Symposium TlOndhelm, NOIway, 20-22 August 1990 Copyl/ght © 1990...

... by users is used for specifying vertical profile of wind speed. Vertical profile of current velocity is assumed to be uniform or to be specified by the modified power law or the distribution defined by users. Con- cerning time varying wind speeds, Davenport's spectrum [Davenport, 1961], Hino's spectrum...

..., R&D Stavanger, Norway ABSTRACT A common model for short crested seas is con- sidered in view of wave measurements from the Norwegian continental Shelf. The directional spectrum is given as a product of a frequency spectrum and a frequency dependent spreading function. The spreading function...

... frequently adopted for the wave spectrum. Accordingly, the long term climate is described by the joint probability distribution of the actual characteristics. The sigmficant wave height, the spectral peak period, and, often also, the main wave direction are typically chosen as characteristic pa- rameters...

... definition IS defined by JONSWAP wave spectrum with Hs =11.5m, Tp =12.5sec. and a peak parameter 4.5 The current is modelled by a constant tidal current profile of 0 5 m/sec from the sea surface to the mudhne and a Wind dnven current varying from 0.5 m/sec. at the sea level to zero at 50m below sea level...