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 134
... Frequency Range Resonance of Elastic Mode Fig.6 Typical frequency response of deflection of pontoon type large scale floating structures . hereafter called characteristic length , is obtained [ 2-4 ] . EI Lw = 2π k C --- ( 2 ) The ...
... Frequency Range Resonance of Elastic Mode Fig.6 Typical frequency response of deflection of pontoon type large scale floating structures . hereafter called characteristic length , is obtained [ 2-4 ] . EI Lw = 2π k C --- ( 2 ) The ...
Page 136
... Frequency ( rad / sec ) Fig . 10 Frequency response of deflection before modification . 2 dynamic system with one - degree - of - freedom is attached to a larger system with one degree of freedom , the two natural frequencies approach ...
... Frequency ( rad / sec ) Fig . 10 Frequency response of deflection before modification . 2 dynamic system with one - degree - of - freedom is attached to a larger system with one degree of freedom , the two natural frequencies approach ...
Page 214
... frequencies and simply decreases when frequency increases . Peaks observed in heave and pitch of semisubmersible correspond to its natural frequencies of motion and these did not appeared in pontoon . The peak at about 14 rad / s of ...
... frequencies and simply decreases when frequency increases . Peaks observed in heave and pitch of semisubmersible correspond to its natural frequencies of motion and these did not appeared in pontoon . The peak at about 14 rad / s of ...
Contents
FREE SPANNING PIPELINEMULTISPAN PROJECTS | 11 |
RELIABILITY DESIGN SUPERB AND DNV96 PROJECTS | 45 |
Requirements to Linepipe Material and Manufacture | 99 |
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airport amplitude analysis ASME axial beam bending bending moment bottom boundary buckling calculated characteristics clad plate coefficient collapse condition corrosion cross-flow deflection deformation density Det Norske Veritas diameter direction displacement dynamic elastic Engineering equation evaluated experimental failure probability fatigue Figure floating airport flow fluid force free span function hoop stress horizontal hydrodynamic Hydroelastic in-line VIV incident waves instability region installation Japan large floating structure length limit limit state design linepipe load effects maximum measured Mega-Float method mode mooring motion MULTISPAN natural frequencies normal numerical obtained Offshore OMAE parameters pipe pipeline prediction pump reduced velocity reliability requirements response safety class safety factors safety levels seabed shown simulation Statoil steel strain stress surface Table temperature thickness titanium trawl turbulence uncertainty velocity potential vertical vibration VLFS Vortex Induced Vibrations water depth wave height welding yield strength