Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 491
... torque differential can also be written in terms of the direction change , da : dT = M , dae , ( 9 ) This torque increment can be interpreted as a distributed , friction- induced torsion moment required to rotate a curved section of ...
... torque differential can also be written in terms of the direction change , da : dT = M , dae , ( 9 ) This torque increment can be interpreted as a distributed , friction- induced torsion moment required to rotate a curved section of ...
Page 492
... torque . Heading change This will cause rotation of the upper end and a torque along the riser . The torque will depend on both bending- and torsional stiff- ness as well as on the riser shape . In the case of a swivel support , the torque ...
... torque . Heading change This will cause rotation of the upper end and a torque along the riser . The torque will depend on both bending- and torsional stiff- ness as well as on the riser shape . In the case of a swivel support , the torque ...
Page 539
17.50 TORQUE ( N. m ) 7.50 10.00 12.50 15.00 0.00 1.25 20.00 22.50 TORQUE ( N. m ) 0.00 1.25 DISPLACEMENT ( mm ) -22.50 -17.50 -37.50 -32.50 -27.50 0.00 FIGURE 9 -12.50 -7.50 фф DISPLACEMENT ( mm ) os 9.00 10.50 12.00 3.00 4.50 9.00 ...
17.50 TORQUE ( N. m ) 7.50 10.00 12.50 15.00 0.00 1.25 20.00 22.50 TORQUE ( N. m ) 0.00 1.25 DISPLACEMENT ( mm ) -22.50 -17.50 -37.50 -32.50 -27.50 0.00 FIGURE 9 -12.50 -7.50 фф DISPLACEMENT ( mm ) os 9.00 10.50 12.00 3.00 4.50 9.00 ...
Contents
VORTEX SHEDDING AND VIBRATION | 187 |
OCEAN WAVES AND CURRENT | 209 |
COMPUTATIONAL METHODS | 247 |
Copyright | |
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added mass amplitude analysis approximately average body boundary condition cable calculated circular cylinder components computed correlation density diffraction displacement distribution drag coefficient dynamic effects Ekofisk Engineering experimental field Figure finite element floating flow fluid free surface frequency domain function Green function horizontal hydrodynamic hydrodynamic forces incident wave integral equation irregular waves length lift force linear load low-frequency matrix maximum measured method mode mode shapes mooring motion natural frequency nonlinear obtained Ocean Offshore Structures OMAE open boundary oscillation parameters phase velocity platform predicted present pressure problem random waves ratio response Reynolds number riser Sarpkaya seabed second-order ship simulation small forward solitary wave solution spectral spectrum stiffness surge tank tanker tension tether theory transverse values vector velocity potential vertical vessel vibration vortex vortices water depth wave drift damping wave forces wave height wave profile