## 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 121

where f ( a ) is the estimated crack size distribution at the time of

Po is the probability of crack detection , defined as where the smallest detectable

crack size adı at the time of

where f ( a ) is the estimated crack size distribution at the time of

**inspection**, andPo is the probability of crack detection , defined as where the smallest detectable

crack size adı at the time of

**inspection**is modelled as a stochastic variable ...Page 284

Qo is the minimum crack size below which a crack can not be detected . \ ( e )

determines the

the

( a ) ...

Qo is the minimum crack size below which a crack can not be detected . \ ( e )

determines the

**inspection**effectiveness and e is a measure of the effort used inthe

**inspection**. A second form of the pod curve is a Rayleigh pod curve , where p( a ) ...

Page 287

Adding the initial costs and the

total expected cost in the whole lifetime C = 0.190 . If instead the n = 1 result is

used then the first

the ...

Adding the initial costs and the

**inspection**costs at the first**inspection**gives thetotal expected cost in the whole lifetime C = 0.190 . If instead the n = 1 result is

used then the first

**inspection**is performed after 9.4 years . Again assuming thatthe ...

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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