Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 4American Society of Mechanical Engineers, 2001 - Arctic regions |
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Page 183
... position 0.2 Pipe's lower edge position 0 0 0 0 100 200 T ( min ) -0.2 60 90 120 150 -0.2 40 60 80 100 T ( min ) T ( min ) -0.4 -0.4 ( a ) -0.6 -0.6 -0.8 -0.8 -1 -1 Sagging Vd = 0.62mm / min Q / Qmax -1.2 -1.2 Bed surface , Vd = 3.1mm ...
... position 0.2 Pipe's lower edge position 0 0 0 0 100 200 T ( min ) -0.2 60 90 120 150 -0.2 40 60 80 100 T ( min ) T ( min ) -0.4 -0.4 ( a ) -0.6 -0.6 -0.8 -0.8 -1 -1 Sagging Vd = 0.62mm / min Q / Qmax -1.2 -1.2 Bed surface , Vd = 3.1mm ...
Page 256
... position of the riser free end . This system has two control cycles . The first one is used to control the velocity and the angular position of the motor through the inverter . The second one controls the riser free end position ...
... position of the riser free end . This system has two control cycles . The first one is used to control the velocity and the angular position of the motor through the inverter . The second one controls the riser free end position ...
Page 279
... position of the pulley C , measured from the pivot point of the A - frame , is obtained by As observed in item ( f ) , it was considered an auxiliary cable with length ho hanging initially at the position x = 14 measured from the ...
... position of the pulley C , measured from the pivot point of the A - frame , is obtained by As observed in item ( f ) , it was considered an auxiliary cable with length ho hanging initially at the position x = 14 measured from the ...
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Common terms and phrases
accretion analysis annulus Arctic Engineering Arctic Ocean axial loading behavior bending stiffness Bohai buckle arrestor cable calculated carrier pipe catenary coefficient collapse compressive Conference on Offshore configuration corrosion crack damping ratio deepwater defect deformation Det Norske Veritas developed diameter displacement dynamic elastic experimental failure pressures Figure finite element finite element analysis flexible pipe flowline fluid fracture freespans gauge grooves heat transfer heat transfer coefficient hummocks ice force ice load ice sheet increase installation insulation internal pressure layer length liner maximum Mechanics and Arctic method Offshore Mechanics operation parameters PETROBRAS phase pipeline pipeline system plastic predicted ratio reeling Rio de Janeiro riser system risk sagging sand scour sea ice seabed shear stress simulation soil specimens stamukhas steel strain strain gauges stress structure subsea surface temperature tension tests thermal thickness titanium values velocity water depth weld wrinkle