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 148
... tests were repeated without the potentiometers . The test setup is similar otherwise . The cylinder was moored with linear vertical springs above and below the cylinder . The cylinder represents a typical leg of a TLP having a 50 ft ...
... tests were repeated without the potentiometers . The test setup is similar otherwise . The cylinder was moored with linear vertical springs above and below the cylinder . The cylinder represents a typical leg of a TLP having a 50 ft ...
Page 461
... tests ' conducted on each of the cylinders at the rate of 20 Hz in air and 50 Hz in water for 4000 data points per record . A sampling rate of 4 Hz over 9 channels ( orthogonal ( X , Y ) support forces and waveheight adjacent to each ...
... tests ' conducted on each of the cylinders at the rate of 20 Hz in air and 50 Hz in water for 4000 data points per record . A sampling rate of 4 Hz over 9 channels ( orthogonal ( X , Y ) support forces and waveheight adjacent to each ...
Page 499
... tests , since the response at a given reduced velocity will always occur at the same ( average ) amplitude . To vary the response amplitude , conceivably systems with different structural damping could have been tested . Instead in the ...
... tests , since the response at a given reduced velocity will always occur at the same ( average ) amplitude . To vary the response amplitude , conceivably systems with different structural damping could have been tested . Instead in the ...
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