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 283
... amplitude of tip of plate or centre of cylinder relative to incident wave amplitude with kh when tuned to kh≈ 1.15 , with clearance 0.1h . The maximum value of this relative displacement for the cylinder does not in fact occur at the ...
... amplitude of tip of plate or centre of cylinder relative to incident wave amplitude with kh when tuned to kh≈ 1.15 , with clearance 0.1h . The maximum value of this relative displacement for the cylinder does not in fact occur at the ...
Page 318
I ( ( x ) Galloping Amplitude ( Ft . ) Fig . 3. Structural dimensions and mode shape ( U / Uc ) Fig . 4. Galloping amplitude from first order analysis follows : 28 Ο 81 = = = pD 2m1 pD 2m1 Co [ 2647.75 U2 ( x ) ] C1 [ 1353.47 U ( x ...
I ( ( x ) Galloping Amplitude ( Ft . ) Fig . 3. Structural dimensions and mode shape ( U / Uc ) Fig . 4. Galloping amplitude from first order analysis follows : 28 Ο 81 = = = pD 2m1 pD 2m1 Co [ 2647.75 U2 ( x ) ] C1 [ 1353.47 U ( x ...
Page 319
... Amplitude ( Ft . ) 20 Galloping Speed ( FPS ) = 0.03 = 0.06 = 0.102 + μ = 0.15 Fig . 8. Phase shift in frequency using fourth order analysis Fig . 11. Effect of damping on galloping amplitude 200 400 T ( Second ) Fig . 9. Galloping ...
... Amplitude ( Ft . ) 20 Galloping Speed ( FPS ) = 0.03 = 0.06 = 0.102 + μ = 0.15 Fig . 8. Phase shift in frequency using fourth order analysis Fig . 11. Effect of damping on galloping amplitude 200 400 T ( Second ) Fig . 9. Galloping ...
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