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 64
... frequency which is due to viscous effects of the pipe wall and is given by equation ( 6 ) . WITH FREQUENCY y and Fry [ 5 ] , for a liquid filled rs due to viscous resistance at the n for the attenuation with frequency ( 4 ) with the ...
... frequency which is due to viscous effects of the pipe wall and is given by equation ( 6 ) . WITH FREQUENCY y and Fry [ 5 ] , for a liquid filled rs due to viscous resistance at the n for the attenuation with frequency ( 4 ) with the ...
Page 123
... frequency easily identifiable , shifted + 50 % from other frequencies which o support structure ; this objective was as monitored spectra showed that the equencies ( 0.9 , 3.9 Hz ) are quite far from natural frequency ( 1.8 Hz ) . care ...
... frequency easily identifiable , shifted + 50 % from other frequencies which o support structure ; this objective was as monitored spectra showed that the equencies ( 0.9 , 3.9 Hz ) are quite far from natural frequency ( 1.8 Hz ) . care ...
Page 131
... frequency frequency of the second filter for soil L ient ( area ) matrix for drag force fined in Eq.7 W g frequency of the first filter for soil tion coefficient g NE ral damping matrix efficient mate hydrodynamic modal damping iameter ...
... frequency frequency of the second filter for soil L ient ( area ) matrix for drag force fined in Eq.7 W g frequency of the first filter for soil tion coefficient g NE ral damping matrix efficient mate hydrodynamic modal damping iameter ...
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