## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 16, Parts 2-3American Society of Mechanical Engineers, 1997 - Arctic regions |

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Page 317

( 2 ) A typical

the top and bottom there are ball joints , implying that the

negligible . A multimodal response implies that for the main part of the riser a ...

( 2 ) A typical

**bending**moment diagram for a vertical riser is shown in Figure 1. Atthe top and bottom there are ball joints , implying that the

**bending**moments arenegligible . A multimodal response implies that for the main part of the riser a ...

Page 328

The probability function of the extreme wave - induced moment Mw.exe among a

large number of

load analysis was performed for three loading conditions : the average ballast ...

The probability function of the extreme wave - induced moment Mw.exe among a

large number of

**bending**moment cycles N is : N ( Mi M.ext F { Mwex } = The waveload analysis was performed for three loading conditions : the average ballast ...

Page 330

It can be seen that the deck panel in sagging condition caused by extreme wave -

induced

moment has the lowest reliability . For the FPSO the deck and section modulus ...

It can be seen that the deck panel in sagging condition caused by extreme wave -

induced

**bending**moment together with mean still water - induced**bending**moment has the lowest reliability . For the FPSO the deck and section modulus ...

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### Contents

SPECTRAL MODELLING OF WAVES | 1 |

RISK ANALYSIS | 33 |

PROBABILISTIC MODELLING OF WAVES | 99 |

Copyright | |

17 other sections not shown

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### Common terms and phrases

analysis applied approach assessment assumed bending calculated carried compared condition considered corrosion crack critical curve damage defects depth determined developed direction distribution earthquake effect element energy Engineering equation estimated evaluated experiment factor failure fatigue Figure force fracture frequency function given growth heat increase indicates initiation inspection International Japan joints length limited loading maintenance material maximum mean measured mechanical method notch observed obtained offshore operations parameters performed period pipe plate platform position prediction present pressure probability procedure properties range relative reliability reported Research respectively response risers safety ship shown shows side simulation specimens spectra standard statistical steel strain strength stress structure surface Table temperature term thickness toughness underwater wave weld metal welded joints yield