Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 162
ยท the data set we used are 6470 kips sec2 / ft , 158.3 kips sec / ft , and 20 kips / ft , respectively . The resonance frequency of the surge of the TLP appears at 0.009 Hz . In Fig . 6 , we plot the overall quadratic transfer function ...
ยท the data set we used are 6470 kips sec2 / ft , 158.3 kips sec / ft , and 20 kips / ft , respectively . The resonance frequency of the surge of the TLP appears at 0.009 Hz . In Fig . 6 , we plot the overall quadratic transfer function ...
Page 164
... [ kips ] 10 10 0 .08 Frequency [ Hz ] .16 Fig . 6. Magnitude of the overall quadratic transfer function | H2 ( j , k ) | of a TLP system with respect to wave amplitude . Fig . 9. Amplitude spectrum of the linear and quadratic wave forces ...
... [ kips ] 10 10 0 .08 Frequency [ Hz ] .16 Fig . 6. Magnitude of the overall quadratic transfer function | H2 ( j , k ) | of a TLP system with respect to wave amplitude . Fig . 9. Amplitude spectrum of the linear and quadratic wave forces ...
Page 327
... Kips 30 60 KEY Load 1 Light 14 2 Load 1 2 12 10 8 6 4 2 0 60 120 180 240 300 90 90 150 210 270 Wind / Wave Direction , Deg FIG 8 Variation of Total Force Ratio With Wind / Wave Direction 2 KEY B As in FIG.5 5 20 60 120 180 240 300 30 90 ...
... Kips 30 60 KEY Load 1 Light 14 2 Load 1 2 12 10 8 6 4 2 0 60 120 180 240 300 90 90 150 210 270 Wind / Wave Direction , Deg FIG 8 Variation of Total Force Ratio With Wind / Wave Direction 2 KEY B As in FIG.5 5 20 60 120 180 240 300 30 90 ...
Contents
Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |
9 | 38 |
27 | 45 |
Copyright | |
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added mass amplitude analysis array calculated results circular cylinder cosh crane ship crest damping coefficient density directional wave displacement distribution domain drag coefficient drag force dynamic effect Engineering equation estimated experimental results flow fluid force coefficients forces acting forward speed free surface Green's function heave horizontal hydrodynamic hydrodynamic forces incident wave irregular Kc number lift force linear load low-frequency matrix maximum measured method mooring line motion nonlinear obtained offshore structures oscillation parameters pile potential theory predicted pressure random ratio Rayleigh distribution regular waves response Sarpkaya second-order semisubmersible ship motions shown in Figure simulation solution spectra spectral density spectrum spreading function surge tanker transfer function vector velocity potential vertical vessel vortex vortex shedding vortices water depth wave amplitude wave component wave drift wave force wave frequency wave groups wave height wave number wave period wave power