## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1991 - Arctic regions |

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Page 40

Borgman obtained a least - square error first approximation to the force power

spectral density

density

root ...

Borgman obtained a least - square error first approximation to the force power

spectral density

**function**, Gif ( f ) , by ... ( f ) are the one - sided power spectraldensity

**functions**of the flow velocity and acceleration , respectively , Ou is theroot ...

Page 309

Rotational and irrotational Green

are presented , with the effects of ... source First - order velocity potential (

irrotational ) First - order stream -

öā , lī ...

Rotational and irrotational Green

**functions**for a divergent and a vorticity sourceare presented , with the effects of ... source First - order velocity potential (

irrotational ) First - order stream -

**function**( rotational ) Small - motion parameter ,öā , lī ...

Page 566

Bi ud = time

slipping distance q = contact pressure The subscript i refers to the ith layer . The

average slipping distance is given by Equation ( 2 ) . The contact pressure is ...

Bi ud = time

**function**= dry friction coefficient between layers = average internalslipping distance q = contact pressure The subscript i refers to the ith layer . The

average slipping distance is given by Equation ( 2 ) . The contact pressure is ...

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### Contents

SPECIAL SESSION HYDRODYNAMICS | 1 |

HYDRODYNAMIC FORCES | 29 |

SECONDORDER EFFECTS | 113 |

Copyright | |

47 other sections not shown

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### Common terms and phrases

acting amplitude analysis angle applied approach approximately assumed average body boundary cable calculated circular cylinder coefficients compared comparison components computed considered constant corresponding cylinder damping depth described determined diffraction direction distribution domain drag drift force effect element Engineering equation estimates experimental experiments expressed field Figure floating flow fluid follows free surface frequency function given height horizontal hydrodynamic incident included increase integral irregular waves length lift force linear loads mass maximum mean measured method mode mooring motion natural nonlinear obtained Ocean Offshore oscillation period phase platform points position potential predicted present pressure problem random range regular relative represents respectively response second order second-order separation ship shown shows simulation solution spectrum structure surge Table tests theory values velocity vertical vortex wave forces