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 79
... movements . The development of the pipeline long term movement calculation proce- dure is based on the assumption that the net pipe movements induced by separate seastates in a storm are independent and can be added linearly to obtain ...
... movements . The development of the pipeline long term movement calculation proce- dure is based on the assumption that the net pipe movements induced by separate seastates in a storm are independent and can be added linearly to obtain ...
Page 246
... movement . Therefore , in order to control the upward creep of an " imperfect " pipe the uplift movement in each tempera- ture cycle should be limited to the " elastic " defor- mation characteristics of the soil , i.e. between point 1 ...
... movement . Therefore , in order to control the upward creep of an " imperfect " pipe the uplift movement in each tempera- ture cycle should be limited to the " elastic " defor- mation characteristics of the soil , i.e. between point 1 ...
Page 268
... movement at platform end . This movement may be in either direction depending upon the changing pattern of temperature and pressure . Furthermore , as the pipeline on seabed or below the seabed tries to move , a frictional force which ...
... movement at platform end . This movement may be in either direction depending upon the changing pattern of temperature and pressure . Furthermore , as the pipeline on seabed or below the seabed tries to move , a frictional force which ...
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