## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 2; Volume 8, Part 2American Society of Mechanical Engineers, 1989 - Arctic regions |

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Page 249

Analytically , this

applicable for the drag force : In the modulated

average value of ...

Analytically , this

**motion**is described as : little when an amplitude modulated**motion**is imposed . The quasi - static approach . however , is clearly notapplicable for the drag force : In the modulated

**motion**of the cylinder , theaverage value of ...

Page 427

on Abstract A previous papers ) showed results of slow

tests in regular waves concerning slow drift oscillation of a moored floating body .

Systematic combinations of waveheight , wave frequency ,

on Abstract A previous papers ) showed results of slow

**motion**forced oscillationtests in regular waves concerning slow drift oscillation of a moored floating body .

Systematic combinations of waveheight , wave frequency ,

**motion**amplitude ...Page 510

X1 / 3 = significant value of lowfrequency

get be as much as one order of magnitude higher than the viscous hull damping .

In carefully conducted model tests these contributions will not be subject to ...

X1 / 3 = significant value of lowfrequency

**motion**From the above expressions weget be as much as one order of magnitude higher than the viscous hull damping .

In carefully conducted model tests these contributions will not be subject to ...

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### Contents

HYDRODYNAMIC FORCES | 1 |

WaveCurrent Force on Horizontal Cylinder | 7 |

DoubleFactor Method for the Linearization of Drag Force | 39 |

Copyright | |

45 other sections not shown

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### Common terms and phrases

added mass amplitude analysis applied approach approximately assumed body boundary calculated circular compared components computed considered correlation corresponding cylinder damping defined depends depth described determined direction distribution drag coefficient drift force effect elements Engineering equation estimate experimental experiments expressed extreme factor failure Figure flow fluid free surface frequency function given horizontal hydrodynamic important in-line included increase indicate integral length lift lift force linear load maximum mean measured Mechanics method mode motion nonlinear normal obtained Offshore oscillation parameters period pipeline potential predicted present pressure probability problem random range ratio reference relative reliability represented respectively response second order separation shear ship shown shows simulation solution structure surface Table term tests theory transverse uncertainty variables varying velocity vertical vortex wave force wave height