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
OFFSHORE MECHANICS | 3 |
Seabed Scour Under Pipelines | 33 |
Flow Around and Forces on a Pipeline Near a Scoured | 39 |
Copyright | |
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acoustic velocity analysis Arctic Engineering axial bending bottom clamp boundary layer buckling calculated clad pipes clamp elevation compression Conference on Offshore crack cylinder deflection deformation developed dew point diameter drag drag coefficient effect electrode equation experimental Figure finite element finite element analysis flow force coefficients free span frequency friction function hoop stress hydrodynamic hydrodynamic forces in-line installation leak detection leak detection system length lift coefficient lift force line pipes liquid load maximum measured Mechanics and Arctic method monitoring nodal analysis Offshore Mechanics operating parameters phase pipe displacement pipeline pore predicted present pressure procedure ratio regular waves response riser roughness SCADA scour sea bed sea floor seabed shown simulated soil steady current strain strain gauges stress structural submarine pipelines surface technique temperature thickness tion two-phase flow values variation vertical vortex shedding weld metal