## 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 103

LEGEND Correlation

damping , where agreement is clearly good . Some loss in accuracy is to be

expected with the non - linear stiffness parameter since the interpolated energy

levels ...

LEGEND Correlation

**function**curve -- Fitting**function**curve the estimateddamping , where agreement is clearly good . Some loss in accuracy is to be

expected with the non - linear stiffness parameter since the interpolated energy

levels ...

Page 120

More precisely , it suggests a method for estimating a cost optimal design ,

inspection and maintenance strategy for a fatigue sensitive structural detail

where the failure costs are determined by using a time - dependent cost -

of the ...

More precisely , it suggests a method for estimating a cost optimal design ,

inspection and maintenance strategy for a fatigue sensitive structural detail

where the failure costs are determined by using a time - dependent cost -

**function**of the ...

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### Contents

CONTENTS | 131 |

High Frequency Hydrodynamic Damping of a TLP | 147 |

A Comparison of Results | 153 |

Copyright | |

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### Common terms and phrases

acceleration added amplitude analysis angle applied approach approximately assumed body boundary cable calculated coefficients compared components computed considered constant coordinate corresponding cylinder damping depth determined developed diffraction direction displacement distribution domain drag drift dynamic effect element Engineering equation estimated experimental experiments expressed field Figure floating flow fluid force free surface frequency function given height hydrodynamic included increase integral length lift force linear load mass maximum mean measured Mechanics method mode mooring motion natural nonlinear obtained Offshore operation oscillation period phase pile platform position potential predicted present pressure problem production range ratio relative represents respectively response second-order separation ship shown shows simulation solution stiffness structure surface surge Table Technology tension tests theory values velocity vertical vessel wave