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 64
... assumed that the force F ( t ) , as discussed in Sarpkaya and Isaacson ( 1981 ) , can be given by F ( t ) 1 Pw D CL ( t ) U2 2 ( 2 ) where is the water mass density and CL ( t ) is a time PW dependent lift coefficient , which has been ...
... assumed that the force F ( t ) , as discussed in Sarpkaya and Isaacson ( 1981 ) , can be given by F ( t ) 1 Pw D CL ( t ) U2 2 ( 2 ) where is the water mass density and CL ( t ) is a time PW dependent lift coefficient , which has been ...
Page 101
... assumed to move rigidly in the radial direction . This radial compatability condition to ensure that the bonded assumption holds true . The imposition of this condition in addition to the axial displacement compatability condition ...
... assumed to move rigidly in the radial direction . This radial compatability condition to ensure that the bonded assumption holds true . The imposition of this condition in addition to the axial displacement compatability condition ...
Page 183
... assumed to move in directions varying from 20 degrees above the horizontal to 80 degrees below horizontal , and the force between the plate and the soil is computed . The dead wedge shape is defined by the direction of movement which ...
... assumed to move in directions varying from 20 degrees above the horizontal to 80 degrees below horizontal , and the force between the plate and the soil is computed . The dead wedge shape is defined by the direction of movement which ...
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addition analysis applied approach assessment assumed bending calculations caused considered CONTINUE corrosion crack damage deformation depth described diameter direction displacement distribution effect energy Engineering ensemble equations factors failure field Figure flow force fracture function given hole included increase initial installation internal layer length limit load material maximum mean measured mechanical method mode movement obtained occurred Offshore operation parameters pipe pipeline plastic plate platform position predicted presented pressure probability problem procedure properties radial range reduced relative reliability resistance response safety scaling scour seabed shown shows simulated soil solution span stability steel strain strength stress structure subsea surface Table term thickness toughness tracers tube uncertainty values valve variables wall wave weight weld