Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 1, Parts 1-2American Society of Mechanical Engineers, 2004 - Arctic regions |
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Page 437
... damping introduced by fairings . The average period is 1.12 seconds . For comparison purposes , the in - water damping ratio for the cylinder without fairings is below 0.05 , based on similar tests . Record Period ( s ) Damping Ratio 1 ...
... damping introduced by fairings . The average period is 1.12 seconds . For comparison purposes , the in - water damping ratio for the cylinder without fairings is below 0.05 , based on similar tests . Record Period ( s ) Damping Ratio 1 ...
Page 496
... Damping Factors for the Elastic Mooring System It was necessary to estimate damping in the system for the six DOF , which may be applicable to the design of the mooring system . Analytical estimate of this damping is a difficult task ...
... Damping Factors for the Elastic Mooring System It was necessary to estimate damping in the system for the six DOF , which may be applicable to the design of the mooring system . Analytical estimate of this damping is a difficult task ...
Page 497
Table 1 Recommended Estimated Total % Damping Factor in the System Mode Total Damping SURGE 6.0 SWAY 7.0 HEAVE 5.0 ROLL 5.0 PITCH YAW 7.0 5.0 It is recognized that these model values are expected to suffer from scale effects . The main ...
Table 1 Recommended Estimated Total % Damping Factor in the System Mode Total Damping SURGE 6.0 SWAY 7.0 HEAVE 5.0 ROLL 5.0 PITCH YAW 7.0 5.0 It is recognized that these model values are expected to suffer from scale effects . The main ...
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Common terms and phrases
amplitude analysis ASME axial barge caisson calculated Campos Basin catenary coefficient comparison computed Conference on Offshore configuration Copyright damping deck diameter diffraction displacement draft drag drag coefficient dynamic effect equations Figure finite element flow fluid force FPSO frequency domain heave hot spot stress hull hydrodynamic installation interaction jacket kips linear load load transfer located longitudinal maximum measured Mechanics and Arctic method mode model test Model-I mooring lines mooring system motion nonlinear numerical obtained Offshore Mechanics offshore structures parameters peak performed Petrobras pipe platform polyester predicted pressure ratio Rayleigh distribution response Reynolds number riser Riser Tensioning S-N curve seastates shear shown in Fig simulation soil spectral spectrum spudcan steel stiffness subsea Table transverse upstream cylinder values velocity velocity potential vertical vessel vibration vortex vortex induced vibrations water depth wave height Weibull distribution Y Force