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
... response of offshore pipelines . INTRODUCTION Offshore pipelines for production of oil and gas are required to be ... response has been proposed by many in the industry ( Karal , 1984 ) . An example of a pipe- line designed with limited ...
... response of offshore pipelines . INTRODUCTION Offshore pipelines for production of oil and gas are required to be ... response has been proposed by many in the industry ( Karal , 1984 ) . An example of a pipe- line designed with limited ...
Page 133
... Response Analysis g ( 4 ) It is assumed that the response of the pipeline to the seismic excitation is also a stationary random process . Since the system is linear , the Power spectral density function , PSDF , of the response can be ...
... Response Analysis g ( 4 ) It is assumed that the response of the pipeline to the seismic excitation is also a stationary random process . Since the system is linear , the Power spectral density function , PSDF , of the response can be ...
Page 138
... response is more pronounced for simply supported end condition . In fact , Fig.4 shows that simply supported ends give rise to more reduction in stress due to pressure drag effect . It may be , therefore , surmised that if the suspended ...
... response is more pronounced for simply supported end condition . In fact , Fig.4 shows that simply supported ends give rise to more reduction in stress due to pressure drag effect . It may be , therefore , surmised that if the suspended ...
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