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 167
... transfer function for the differ- ence - frequency wave drift force due to the presence of two simul- taneous regular waves with frequencies w ; and wh . To accurately calculate drift force with equation ( 3 ) , it is necessary to know ...
... transfer function for the differ- ence - frequency wave drift force due to the presence of two simul- taneous regular waves with frequencies w ; and wh . To accurately calculate drift force with equation ( 3 ) , it is necessary to know ...
Page 55
... Transfer Function . The transfer function HQ ( w ) expresses the horizontal platform force amplitude for a regular wave with unit amplitude and period 2 / w . The transfer function HM ( w ) simi- larly expresses the moment amplitude for ...
... Transfer Function . The transfer function HQ ( w ) expresses the horizontal platform force amplitude for a regular wave with unit amplitude and period 2 / w . The transfer function HM ( w ) simi- larly expresses the moment amplitude for ...
Page 253
... transfer function was evaluated ( right ) ; for element 3 the transfer function and spectral moments are plotted in Fig . 2 and Fig . 8 , respectively With the transfer function Ysz ( w ) the stress spectrum Sss can be established ...
... transfer function was evaluated ( right ) ; for element 3 the transfer function and spectral moments are plotted in Fig . 2 and Fig . 8 , respectively With the transfer function Ysz ( w ) the stress spectrum Sss can be established ...
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