## 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

where Y is the amplitude of

where Y is the amplitude of

**oscillation**, and fem are respectively the frequencies of the fast and the " slow motions . In the beating vibration of a cable , the fast frequency is equal to the Strouhal frequency fg , whereas the slow ...Page 497

VISCOUS DAMPING FORCES FOR SLOW DRIFT

VISCOUS DAMPING FORCES FOR SLOW DRIFT

**OSCILLATION**OF THE FLOATING STRUCTURE ACTING ON THE HULL AND MOORING LINES W. ... study on the viscous drag forces acting on the model of a semi - submersible**oscillating**in waves is carried out .Page 500

We can define the Strouhal number St in an unsteady flow by using the maximum velocity U of the slow

We can define the Strouhal number St in an unsteady flow by using the maximum velocity U of the slow

**oscillation**... of cylinder D Experimental studies ( 9.10 show that the value of Strouhal number in**oscillating**flow is almost same ...### What people are saying - Write a review

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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