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 mours . os the " basic " pipeline movement he calculations . For a given H , period ( T ) the pipe movement ( x ) given current . Seastate dura- Here the pipe displace- as the mean net displacement for d current , i.e. ...
... Given Seastate mours . os the " basic " pipeline movement he calculations . For a given H , period ( T ) the pipe movement ( x ) given current . Seastate dura- Here the pipe displace- as the mean net displacement for d current , i.e. ...
Page 82
... given by Equation ( 7 ) and is a function of the mean . Because lifications made in the process , the normal function may be useful for S. Results from the example given strate the deviation of the actual nt distribution function from a ...
... given by Equation ( 7 ) and is a function of the mean . Because lifications made in the process , the normal function may be useful for S. Results from the example given strate the deviation of the actual nt distribution function from a ...
Page 340
... given time interval ( t ) given by : N ( n ) -λet e n ( λet ) n ! ( 2 ) re λ represents the temporal scour rate ( number of nts / km . year ) . The process is termed a compound cess because each event must be described by one more ...
... given time interval ( t ) given by : N ( n ) -λet e n ( λet ) n ! ( 2 ) re λ represents the temporal scour rate ( number of nts / km . year ) . The process is termed a compound cess because each event must be described by one more ...
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