## 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 376

Water depth

Density of seawater 85 m 74.5 m +16.4 m +4.9 m 0.6 m / s 1026 kg / m3 Pipe ID

0.203 m Pipe OD 0.31 m Buoyancy OD 0.70 m In - water weight , w / fluid 1.10 kN

/ m ...

Water depth

**Mean**riser top elevation Heave Vessel offset Current ( uniform )Density of seawater 85 m 74.5 m +16.4 m +4.9 m 0.6 m / s 1026 kg / m3 Pipe ID

0.203 m Pipe OD 0.31 m Buoyancy OD 0.70 m In - water weight , w / fluid 1.10 kN

/ m ...

Page 200

It is similar to the root

is used instead of 2. The root

successfully even for sea water tests (Cheng, 1988). However, it has some ...

It is similar to the root

**mean**square calculation, but the fatigue damage exponentis used instead of 2. The root

**mean**m method has been used widely andsuccessfully even for sea water tests (Cheng, 1988). However, it has some ...

Page 206

Om KA f max Or Local ( notch root )

stress Weld flank angle Standard deviation of the log - normal probability

distribution function = 1 +.00325 aa 5.0.9 20.5 = 1 +.00325 aB 30 : 940.5 where A

and B ...

Om KA f max Or Local ( notch root )

**mean**stress Local ( notch root ) residualstress Weld flank angle Standard deviation of the log - normal probability

distribution function = 1 +.00325 aa 5.0.9 20.5 = 1 +.00325 aB 30 : 940.5 where A

and B ...

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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 | |

45 other sections not shown

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### Common terms and phrases

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