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

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Page 376

( This constraint ensures that the bottom rotation can be distributed over a

sufficient

current effects are included : L1 = 0 . 038 ; L2 = 1 . 16 ; L3 = 0 . 832 ; and W2 = 0 .

832 , with a ...

( This constraint ensures that the bottom rotation can be distributed over a

sufficient

**length**. ) The following design , illustrated in Fig . 5 , is found whencurrent effects are included : L1 = 0 . 038 ; L2 = 1 . 16 ; L3 = 0 . 832 ; and W2 = 0 .

832 , with a ...

Page 382

Unit m Parameter Total riser

unit

Sectional area E - module Result Upper end tension Bottom end tension

Inclination ...

Unit m Parameter Total riser

**length**Outside diameter Inside diameter Mass perunit

**length**( in air , empty ) Moment of inertia Tortional moment of inertiaSectional area E - module Result Upper end tension Bottom end tension

Inclination ...

Page 472

Parameters that were considered included base width , brace area , leg area ,

pile

height ( near the base of the tower ) . In addition to period changes caused by ...

Parameters that were considered included base width , brace area , leg area ,

pile

**length**, pile area , deck payload , conductor mass , tower taper and floodedheight ( near the base of the tower ) . In addition to period changes caused by ...

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### Contents

Identification of NonLinear Effects in Predicting the Motion Response of Mobile Platforms | 337 |

RISERSMOORINGSCABLES | 345 |

HYDRODYNAMIC FORCES | 347 |

Copyright | |

13 other sections not shown

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### Common terms and phrases

alternative amplitude analysis applied approach array axial barge bending brace buoyancy cable calculated coefficient combination compared configuration considered corresponding curvature curve damage damping defined deflection determined developed direction displacement distribution drag dynamic effects elements Engineering environmental equation estimated extreme factor fatigue Figure flexible riser flow force frequency function given height important increase indicate installation length linear load marine mass matrix maximum mean measured method mode mooring motion natural nonlinear normal obtained offshore operation parameters performed period phase pile platform position predicted present problem production relative represent respectively response riser rotating selection shown shows simulation soil solution static stiffness storage strain stress structure surface Table tension tests values vertical vessel water depth wave wind