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 82
... function be a normal function with a mean value 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 ...
... function be a normal function with a mean value 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 ...
Page 131
... function . The cross spectral density function between two random seismic excitations along the pipe length is defined with the help of local earthquake power spectral density function , which is assumed same for the two end supports of ...
... function . The cross spectral density function between two random seismic excitations along the pipe length is defined with the help of local earthquake power spectral density function , which is assumed same for the two end supports of ...
Page 134
... functions can be expressed in terms of Sug and the correla- tion function Rij of displacement between any two nodes i and j in the following manner . ون رون روت · ügi T. F = ( iw ) رون Sugi üg1 = ( iw ) Súg , úgi T.F = ( 1 / iw ) Süg ...
... functions can be expressed in terms of Sug and the correla- tion function Rij of displacement between any two nodes i and j in the following manner . ون رون روت · ügi T. F = ( iw ) رون Sugi üg1 = ( iw ) Súg , úgi T.F = ( 1 / iw ) Süg ...
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