Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 16, Parts 5-6American Society of Mechanical Engineers, 1997 - Arctic regions |
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Page 10
... region . For 30 ° current direction and 8-9 % turbulence intensity the oscillations almost disappear in the first as well as in the second instability region . Damping The effect of damping is illustrated in Fig . 9 which presents ...
... region . For 30 ° current direction and 8-9 % turbulence intensity the oscillations almost disappear in the first as well as in the second instability region . Damping The effect of damping is illustrated in Fig . 9 which presents ...
Page 25
... region The amplitude of in - line VIV gently increases ( slope ≈ 1/10 ) as the reduced velocity increases . After reaching the maximum value , approximately Vr≈ 2.2 , the amplitude of in - line VIV decays abruptly . - Second ...
... region The amplitude of in - line VIV gently increases ( slope ≈ 1/10 ) as the reduced velocity increases . After reaching the maximum value , approximately Vr≈ 2.2 , the amplitude of in - line VIV decays abruptly . - Second ...
Page 160
... region II : region 4 region / oh / g = 1.0 , 2l / h = 2.0 . T / T = 0.1 P / P = 0.96 . K = 0.311 σt = 0 ° ot = 45 ° at = 90 ° region III ropion 1 region ! 1 / h x / h Fig . 3 ( c ) The elevations of free water surface and membrane for 2 ...
... region II : region 4 region / oh / g = 1.0 , 2l / h = 2.0 . T / T = 0.1 P / P = 0.96 . K = 0.311 σt = 0 ° ot = 45 ° at = 90 ° region III ropion 1 region ! 1 / h x / h Fig . 3 ( c ) The elevations of free water surface and membrane for 2 ...
Contents
FREE SPANNING PIPELINEMULTISPAN PROJECTS | 11 |
Design Guideline for Free Spanning Pipelines | 28 |
RELIABILITY DESIGN SUPERB AND DNV96 PROJECTS | 45 |
Copyright | |
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amplitude analysis ASME axial beam bending bending moment bottom boundary calculated characteristics coefficient collapse condition corrosion cross-flow defect deformation density Det Norske Veritas developed diameter displacement dynamic elastic electrodes Engineering equation evaluated experimental fatigue Figure floating airport flow rate fluid force free span function hoop stress horizontal hydrodynamic Hydroelastic impeller in-line VIV incident waves inspection instability region installation interaction Japan large floating structure length limit limit state design linepipe load effects maximum measured Mega-Float meter method mode mooring motion natural frequencies node numerical obtained Offshore parameters phase pipe predicted pressure distribution ratio reduced velocity reliability response safety class safety factors safety levels sand wave seabed simulation Statoil steel strain stress surface Table temperature thickness titanium trawl turbulence two-phase flow uncertainty velocity potential vertical vibration VLFS Vortex Induced Vibrations water depth wave height welding