## Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1990 - Arctic regions |

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Page 33

... probability density function for modelling stress

... probability density function for modelling stress

**ranges**in a broad - banded stress spectrum is proposed . ... loading approach and an equivalent stress**range**approach , are developed to obtain the cumulative fatigue load effect .Page 35

1 Illustration of the equivalent block loading concept Let there be a total of L blocks each of width ds and constant amplitude stress

1 Illustration of the equivalent block loading concept Let there be a total of L blocks each of width ds and constant amplitude stress

**ranges**si , S2 , ... , SQ , ... , SL Using the probability density function of stress**range**...Page 39

da -C ( AKeff ) m 4.2 Equivalent Stress

da -C ( AKeff ) m 4.2 Equivalent Stress

**Range**Approach The threshold factor G ( a ) can be expressed as G ( a ) - E [ sm ] | Efsm ] sth ( a ) - - E [ mm ] % ch ( a ) ) E [ rn ] E [ mm ] Yen ( a ) -C ( U AK ] " AKSAKth ( 34 ) where U is ...### What people are saying - Write a review

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### Contents

HYDRODYNAMIC FORCES | 47 |

The Force Coefficients on Inclined Cylinder in Random Wave and Current | 57 |

K S Varyani | 79 |

Copyright | |

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acting added mass amplitude analysis angle applied array assumed body boundary calculated circular coefficient compared component considered constant corresponding crest cylinder damping defined dependent depth determined direction distribution domain drag drift dynamic effect element Engineering equation estimated experimental experiments expressed Figure flow fluid forward speed frequency function given heave horizontal hydrodynamic increase integral irregular length lift force linear load maximum mean measured method mooring motion nonlinear obtained Offshore oscillation parameters period phase pile plate potential predicted present pressure problem radiation range ratio reference regular waves relative respectively response riser ship shown shown in Figure simulation solution spectra spectrum structure surface surge Table theory velocity vertical vessel wave force wave height wind