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 308
... ( vertical ) force , i.e. , lift coefficient during VIV can be estimated by using amplitude of vertical displacement at the top peak frequency . The estimated lift coefficients similar to the measured lift coefficients with the vertical ...
... ( vertical ) force , i.e. , lift coefficient during VIV can be estimated by using amplitude of vertical displacement at the top peak frequency . The estimated lift coefficients similar to the measured lift coefficients with the vertical ...
Page 394
... vertical directions , the equilibrium of forces and moment in the riser element can be obtained as shown X bellow : F YO + F YI de Fxo + F XI P Ꮎ Nird Ꮎ ᎾᎢ T dx T + dT 10 + de d V V + dV Figure 2 - Static Equilibrium for a Riser ...
... vertical directions , the equilibrium of forces and moment in the riser element can be obtained as shown X bellow : F YO + F YI de Fxo + F XI P Ꮎ Nird Ꮎ ᎾᎢ T dx T + dT 10 + de d V V + dV Figure 2 - Static Equilibrium for a Riser ...
Page 401
... vertical force Fw - weight of riser FVIV - force caused by the VIV Gg - pressure gradient due to gravity Gu · - pressure gradient due to viscous friction Ga Gt - pressure gradient due to acceleration of the fluid · along the flowline ...
... vertical force Fw - weight of riser FVIV - force caused by the VIV Gg - pressure gradient due to gravity Gu · - pressure gradient due to viscous friction Ga Gt - pressure gradient due to acceleration of the fluid · along the flowline ...
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2DOF amplitude analysis ASME axial barge caisson calculated Campos Basin catenary coefficient computed Conference on Offshore configuration contour line convergence Copyright curve damping deck density diameter displacement distribution drag coefficient dynamic effects equation excitation experimental extrapolation Figure flow fluid force FPSO free surface frequency domain Guide Load heave hot spot stress hull hydrodynamic installation jacket kips lift coefficient linear load transfer located longitudinal maximum measured Mechanics and Arctic mesh refinement method mode model test moon pool mooring lines mooring system motion noise nonlinear obtained Offshore Mechanics operation parameters peak Petrobras pipe platform polyester polyester rope Predicted pressure random waves ratio response Reynolds number riser roll S-N curve seastates shear soil spectral spudcan steel stiffness structure Table tension transverse upstream cylinder velocity velocity potential vertical vessel vibration vortex water depth wave height Weibull distribution weld