## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 2; Volume 7, Part 2American Society of Mechanical Engineers, 1988 - Arctic regions |

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Page 328

One problem in performing a frequency domain analysis lies in the nonlinear dependence of the

One problem in performing a frequency domain analysis lies in the nonlinear dependence of the

**drag**force on the fluid velocity . A common method to circumvent this difficulty is to linearize the**drag**force in such a way that the mean ...Page 330

As mentioned previously , the spectral density of the generalized wave force on the platform has an infinite series representation in terms of convolutions of the velocity spectrum , and the linearized

As mentioned previously , the spectral density of the generalized wave force on the platform has an infinite series representation in terms of convolutions of the velocity spectrum , and the linearized

**drag**force is equivalent to the ...Page 332

RATIO OF

RATIO OF

**DRAG**FORCE SPECTRA yrynen 0 0.0 0.1 0.2 0.5 0.6 0.3 0.4 FREQ ( Hz ) Fig . 8 Ratio of**drag**force spectrum without and with damping region in sea state 1 . 2 . Hanna , S. Y. , " Wave Cancellation Effects for Deepwater Fixed ...### What people are saying - Write a review

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### Contents

HYDRODYNAMIC FORCESI | 1 |

Catchment Regions of Multiple Dynamic Responses in Nonlinear Problems of Offshore Mechanics | 15 |

OFFSHORE TECHNOLOGY GEOTECHNICAL ENGINEERING | 21 |

Copyright | |

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### Common terms and phrases

acting added amplitude analysis applied approximately assumed body boundary breaker breaking calculated coefficients columns compared comparison component computations considered corresponding cylinder damping density dependence depth derived determined diameter direction distribution domain drag drift force dynamic effects elevation Engineering equation error estimated evaluated excitation experimental experiments expressed field Figure floating flow fluid free surface frequency function given horizontal hydrodynamic incident increase integral irregular length linear load mass maximum mean measured Mechanics method motion obtained Ocean Offshore oscillation panels parameters period phase platform potential predicted present pressure probability problem range ratio region regular waves relative respectively response shear shown shows simulation solution spectra spectrum structure surface Table tests theory values velocity vertical vortex wave drift wave forces wave height