Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 123
... Computed spectrum 2 - Measured spectrum Ty ( f ) = ( 2f ) 2 cosh2kz sinh2kd ( 5 ) The theoretically computed spectrum using Eqns . ( 4 ) and ( 5 ) has been plotted with measured spectrum for compari- son , Fig.5 . The spectral density ...
... Computed spectrum 2 - Measured spectrum Ty ( f ) = ( 2f ) 2 cosh2kz sinh2kd ( 5 ) The theoretically computed spectrum using Eqns . ( 4 ) and ( 5 ) has been plotted with measured spectrum for compari- son , Fig.5 . The spectral density ...
Page 124
... ( Computed ) = 88.239 kg . 0-600 0.700 Frequency , Hz 0-800 0.90C SINGLE CYLINDER TOTAL FORCE SPECTRUM ( COMPUTED ) SPECTRAL RANGE : 0.5-2.5 Hz 4. ARRAY OF CYLINDERS The results from the evaluated data of the experi- ments and theoretical ...
... ( Computed ) = 88.239 kg . 0-600 0.700 Frequency , Hz 0-800 0.90C SINGLE CYLINDER TOTAL FORCE SPECTRUM ( COMPUTED ) SPECTRAL RANGE : 0.5-2.5 Hz 4. ARRAY OF CYLINDERS The results from the evaluated data of the experi- ments and theoretical ...
Page 146
... computed values by the linear diffraction / radiation theory . The overall comparison of the added mass coefficients was reasonably good . The computed radiation damping was subtracted from the measured values . The residual viscous ...
... computed values by the linear diffraction / radiation theory . The overall comparison of the added mass coefficients was reasonably good . The computed radiation damping was subtracted from the measured values . The residual viscous ...
Contents
OCEAN WAVES | 1 |
Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 25 |
Copyright | |
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acceleration added mass amplitude analysis boundary conditions calculated circular cylinder computed cosh crest cylinder array damping coefficient damping factor density diffraction domain drag coefficient drag force drift force dynamic effect equation estimated flow fluid force coefficients forces acting forward speed free surface heave horizontal hydrodynamic hydrodynamic forces incident wave inertia coefficients integral irregular Kc number lift force linear load low-frequency low-frequency oscillation maximum measured method motion nonlinear obtained offshore structures oscillatory parameters pile plate potential flow predicted quadratic rad/sec radiation condition ratio regular waves response Sarpkaya second order second-order semisubmersible shown in Figure simulation solution spectral density spectrum surface elevation surge swing tank tanker transfer function vector velocity potential viscous vortex shedding vortices water depth wave amplitude wave drift damping wave excitation wave force wave frequency wave groups wave height wave number wave period wave power