Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 5American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 13
... determined from potential flow theo- ry , was used in the Fourier decomposition . The force coefficients were determined using the following expressions : ( / / 2 C1 ( t ) = F12 ( t ) / 1⁄2 pDU2 = 9 CHO + Σ C cos i ( wt - Hi ) CHi ( 10 ) ...
... determined from potential flow theo- ry , was used in the Fourier decomposition . The force coefficients were determined using the following expressions : ( / / 2 C1 ( t ) = F12 ( t ) / 1⁄2 pDU2 = 9 CHO + Σ C cos i ( wt - Hi ) CHi ( 10 ) ...
Page 81
... determined from a single simulation of a seastate using a 3D , random , linear wave kinematics model , with the associated steady current . a a Actually , if the simulation were to be repeated with a different seed number in the random ...
... determined from a single simulation of a seastate using a 3D , random , linear wave kinematics model , with the associated steady current . a a Actually , if the simulation were to be repeated with a different seed number in the random ...
Page 155
... determined solution for node positions , i.e. , redundancy . The method of least - squares solution for over - determined models is used , which essentially provides the optimal and unique solution of the equation system by minimizing ...
... determined solution for node positions , i.e. , redundancy . The method of least - squares solution for over - determined models is used , which essentially provides the optimal and unique solution of the equation system by minimizing ...
Contents
Model Tests | 3 |
B Bryndum V Jacobsen and D T Tsahalis 9 | 21 |
Scour Under Pipelines | 33 |
Copyright | |
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acoustic velocity analysis Arctic Engineering axial behaviour bending bottom boundary layer buckling cable calculated clamp Cobia compression corrosion crack cylinder deflection deformation developed dew point diameter drag drag coefficient effect elastic equation experimental field Figure finite element flow force coefficients free span frequency friction friction welding function hoop stress horizontal Hydraulic hydrodynamic hydrodynamic forces in-line installation irregular waves length lift coefficient lift force liquid load maximum measured mechanical method monitoring movement nodal analysis operating parameters phase pipe displacement pipe material pipeline predicted pressure procedure ratio response riser roughness SCADA scour sea bed sea floor seabed shown simulated slug soil steady current steel storm strain strain gauges stress structural submarine pipelines surface Technology temperature tion Turning Bands underwater values variation vertical vortex shedding water depth welding zone