Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9, Part 5American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 68
Parameter Symbol Present Approach * Length / Diameter Ratio L / D Considered Reduced Vibration Amplitude Y / D , Z / D Considered Gap Ratio € / D Preserved Reduced Velocity Ur Preserved Frequency Ratio fr Preserved Parameter Units Span ...
Parameter Symbol Present Approach * Length / Diameter Ratio L / D Considered Reduced Vibration Amplitude Y / D , Z / D Considered Gap Ratio € / D Preserved Reduced Velocity Ur Preserved Frequency Ratio fr Preserved Parameter Units Span ...
Page 121
... ratio ex : Max . voids ratio : Total horizontal soil resistance force : Submerged pipe weight INTRODUCTION In recent years several projects have been conducted into the stability of on - bottom pipelines subjected to combined wave and ...
... ratio ex : Max . voids ratio : Total horizontal soil resistance force : Submerged pipe weight INTRODUCTION In recent years several projects have been conducted into the stability of on - bottom pipelines subjected to combined wave and ...
Page 184
... ratio R where : R = q x L F where q = maximum bearing capacity L = length of base of dead wedge F = reaction of base of dead wedge as determined by the passive pressure algorithm The calculated ratio , R , cannot be used in a ...
... ratio R where : R = q x L F where q = maximum bearing capacity L = length of base of dead wedge F = reaction of base of dead wedge as determined by the passive pressure algorithm The calculated ratio , R , cannot be used in a ...
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Common terms and phrases
actuator analysis applied assessment axial ball valve Beaufort Sea bending bifurcation break-out buckling calculations check valve circumferential Cisco field coefficient collapse corrosion crack ensembles crack tip damage deformation density distribution effect equations ESD valve Figure flow force fracture fracture mechanics free span function HAZ toughness Houston hydrodynamic ice feature ice hole ice keel ice scour increase installation layer length line pipe Lougheed Island material maximum method mode shape Offshore Mechanics Offshore Technology Conference on-bottom stability parameters partial safety factors pearlite permafrost pipe displacement pipe weight pipeline plastic plate platform predicted pressure procedure radial ratio reliability riser rupture scour hole seabed seastate shows simulated Sotberg stability design strength stress structure Submarine Pipelines subsea subsea ESD surface Table tensile tensile strength tracers tube uncertainty values variables velocity vertical wave yield strength