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 81
... Given Seastate ( H ,, T ) This step develops the " basic " pipeline movement data to be used in the calculations . For a given H , and its associated period ( T ) the pipe movement ( x ) is calculated for a given current . Seastate dura ...
... Given Seastate ( H ,, T ) This step develops the " basic " pipeline movement data to be used in the calculations . For a given H , and its associated period ( T ) the pipe movement ( x ) is calculated for a given current . Seastate dura ...
Page 82
... given by Equation ( 7 ) and a variance which is a function of the mean . Because of the many simplifications made in the process , the assumption of a normal function may be useful for some applications . Results from the example given ...
... given by Equation ( 7 ) and a variance which is a function of the mean . Because of the many simplifications made in the process , the assumption of a normal function may be useful for some applications . Results from the example given ...
Page 340
... given time interval ( t ) is given by : P N ( n ) -λet e n ( λet ) n ! ( 2 ) where represents the temporal scour rate ( number of events / km . year ) . The process is termed a compound process because each event must be described by ...
... given time interval ( t ) is given by : P N ( n ) -λet e n ( λet ) n ! ( 2 ) where represents the temporal scour rate ( number of events / km . year ) . The process is termed a compound process because each event must be described by ...
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