## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 2American Society of Mechanical Engineers, 1990 - Arctic regions |

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Page 58

For the governing sea state it has been

For the governing sea state it has been

**calculated**to be 13.33 m . The short term response in a range of sea - states has been**calculated**. The sea - states are represented by JONSWAP spectra and no wave energy spreading function is ...Page 69

The corresponding reliability index is

The corresponding reliability index is

**calculated**as 3.435 , 3.446 and 3.455 for n = 3 , n = 4 and n 6 respectively . It is seen that the component reliability index is only slightly affected by the number of tethers per tension leg .Page 275

9 Second order reliability indices

9 Second order reliability indices

**calculated**for the weld toe crack and weld crack cases compared to the indices**calculated**using the Level 2 limit state function and the LBZ CTOD ( t = 10 mm ) distribution . Fig .### What people are saying - Write a review

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### Contents

Investigation of the Ergodicity Assumption for Sea States in the Reliability Assessment of Offshore | 1 |

OFFSHORE TECHNOLOGY PART | 33 |

Extreme Forces on Large AxiSymmetric Offshore Structures in Directional Seas | 49 |

Copyright | |

15 other sections not shown

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### Common terms and phrases

analysis applied approach approximately assessment assumed average basic calculated coefficient component computed considered constant corresponding cost crack growth curve cycles damage defect density depends depth derived described determined developed deviation distribution drag effects Engineering equation equivalent estimated evaluated example expected extreme factor failure failure probability fatigue Figure force fracture frequency function geometry given important included increase indicated initial inspection integration joints limit linear load Lognormal material maximum mean measured mechanics method normal obtained offshore structures operation parameters performed period platform predicted present pressure probabilistic probability procedure random variable range ratio reference relative reliability represent requirements respectively response risk safety sensitivity shown shows significant simulation standard statistical storm strength stress structure surface Table tension tether tubular uncertainty variables variation wave wave height weld