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 77
... field records and the finite element results is less than three percent on curvature . The values given for field curvature have been calculated from three successive transponder locations and are subject to the inherent uncertainties of ...
... field records and the finite element results is less than three percent on curvature . The values given for field curvature have been calculated from three successive transponder locations and are subject to the inherent uncertainties of ...
Page 78
... Field / FEM B C Field FEM Field FEM D Field FEM PIPE END # 1 X Y 16.0 12 157.5 113 13 15 114 68 15 42 44 68 24 25 # 2 X Y 49.0 44 150.8 126 46 44 45 58 60 125 87 84 54 55 TARGET AREA # 3 133 PULL - IN CABLE XX Y 83.7 80 141.1 132 81 78 ...
... Field / FEM B C Field FEM Field FEM D Field FEM PIPE END # 1 X Y 16.0 12 157.5 113 13 15 114 68 15 42 44 68 24 25 # 2 X Y 49.0 44 150.8 126 46 44 45 58 60 125 87 84 54 55 TARGET AREA # 3 133 PULL - IN CABLE XX Y 83.7 80 141.1 132 81 78 ...
Page 112
... FIELD a Consider , Fig.1 , waves passing over fluid layer with mean depth hi , under which is a homogeneous and isotropic porous seabed with depth h2 . Beneath this porous medium is an incompressible and impermeable boundary . A ...
... FIELD a Consider , Fig.1 , waves passing over fluid layer with mean depth hi , under which is a homogeneous and isotropic porous seabed with depth h2 . Beneath this porous medium is an incompressible and impermeable boundary . A ...
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