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 80
... displacements caused by each individual storm as long as the total displacement is relatively small ( compared with the pipeline length ) and no long - term pipe settlement takes place . Strictly speaking , the assumption that the pipe ...
... displacements caused by each individual storm as long as the total displacement is relatively small ( compared with the pipeline length ) and no long - term pipe settlement takes place . Strictly speaking , the assumption that the pipe ...
Page 81
... displace- ment , x , is treated as the mean net displacement for a given seastate and current , i.e. , x is determined from a single simulation of a seastate using a 3D , random , linear wave kinematics model , with the associated ...
... displace- ment , x , is treated as the mean net displacement for a given seastate and current , i.e. , x is determined from a single simulation of a seastate using a 3D , random , linear wave kinematics model , with the associated ...
Page 83
... displacement is calculated as 3.5 ft and the most probable displacement is about 0 ft . For 20 years of exposure , the expected pipe cumulative displacement is found to be 18.3 ft and the most probable displacement is also about 0 ft ...
... displacement is calculated as 3.5 ft and the most probable displacement is about 0 ft . For 20 years of exposure , the expected pipe cumulative displacement is found to be 18.3 ft and the most probable displacement is also about 0 ft ...
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