## 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 38

For the equivalent

approach proposed in this paper , the threshold factor G ( a ) can be derived as

follows . Sth ( a ) AKth / Q ( a ) ( a ) + ( 26 ) occurs a Note that sth is a function of '

a ' and ...

For the equivalent

**block**loading approach and the equivalent stress rangeapproach proposed in this paper , the threshold factor G ( a ) can be derived as

follows . Sth ( a ) AKth / Q ( a ) ( a ) + ( 26 ) occurs a Note that sth is a function of '

a ' and ...

Page 40

depend on the spectral parameters and have to be ' calculated ' separately for

each stress spectra or each

R.H.S can now be calculated from the nominal cyclic stresses alone , regardless

of ...

depend on the spectral parameters and have to be ' calculated ' separately for

each stress spectra or each

**block**of loading . However , the loading term on theR.H.S can now be calculated from the nominal cyclic stresses alone , regardless

of ...

Page 242

Without significant loss of accuracy , however , a simplified procedure based

stresses and the statistical parameters of the stresses do not change within each

Without significant loss of accuracy , however , a simplified procedure based

**blocking**of this diagram utilized . It is assumed that the transfer function ofstresses and the statistical parameters of the stresses do not change within each

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### Contents

Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |

HYDRODYNAMIC FORCES | 47 |

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

Copyright | |

45 other sections not shown

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### Common terms and phrases

acting added mass amplitude analysis applied array assumed body boundary calculated circular coefficient compared comparison component considered constant corresponding crest cylinder damping defined dependent depth determined direction distribution domain drag drift dynamic effect element elevation 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 second-order ship shown shown in Fig simulation solution spectra spectrum structure surface surge Table theory velocity vertical vessel wave force wave height wind