## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1990 - Arctic regions |

### From inside the book

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Page 10

2.2.4 ARMA

target spectrum . ... The interest of the

step is obtained by linear combination of few terms , which is very fast , and bears

no ...

2.2.4 ARMA

**methods**These**methods**are based on an approximation of thetarget spectrum . ... The interest of the

**method**is that the sea elevation at a timestep is obtained by linear combination of few terms , which is very fast , and bears

no ...

Page 379

DYNAMIC ANALYSIS OF FLEXIBLE RISERS : A COMPARISON WITH A

RANDOM VORTEX

S. Loseth STATOIL Trondheim , Norway N. G. Skomedal Veritas Research Hovik

...

DYNAMIC ANALYSIS OF FLEXIBLE RISERS : A COMPARISON WITH A

RANDOM VORTEX

**METHOD**AND THE MORISON'S EQUATION P. Teigen andS. Loseth STATOIL Trondheim , Norway N. G. Skomedal Veritas Research Hovik

...

Page 107

As an improvement to equivalent stochastic linearization of the drag force , an

equivalent stochastic " quadratization "

force nonlinearity is replaced by an " equivalent " quadratic nonlinearity .

As an improvement to equivalent stochastic linearization of the drag force , an

equivalent stochastic " quadratization "

**method**is proposed , in which the dragforce nonlinearity is replaced by an " equivalent " quadratic nonlinearity .

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### Contents

Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |

HYDRODYNAMIC FORCES | 47 |

The Force Coefficients on Inclined Cylinder in Random Wave and Current | 57 |

Copyright | |

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### Common terms and phrases

acting added mass amplitude analysis applied array assumed body boundary calculated circular coefficient compared comparison component considered constant corresponding crest cylinder damping defined dependent depth determined direction distribution domain drag drift dynamic effect element elevation Engineering equation estimated experimental experiments expressed Figure flow fluid forward speed frequency function given heave horizontal hydrodynamic increase integral irregular length lift force linear load maximum mean measured method mooring motion nonlinear obtained Offshore oscillation parameters period phase pile plate potential predicted present pressure problem radiation range ratio reference regular waves relative respectively response riser second-order ship shown shown in Fig simulation solution spectra spectrum structure surface surge Table theory velocity vertical vessel wave force wave height wind