Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 10American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 144
... Simulation of the Seaway In the time history simulation the sea spectrum is simulated by replacing the original spectrum by 32 sinusoidal wave components . This number of components has been found from past experience to be adequate to ...
... Simulation of the Seaway In the time history simulation the sea spectrum is simulated by replacing the original spectrum by 32 sinusoidal wave components . This number of components has been found from past experience to be adequate to ...
Page 162
... Simulation B Simulation C rads / sec Fig . 7 PSD of surge response metres metres 00 70 metres 100 metres 0.0 10.0- пишит -10.0+ 107.9910 111 5896 115.1881 118 7867 122.3852 125 0838 Time / sec • 10 LEGEND Simulation A -with wave damping ...
... Simulation B Simulation C rads / sec Fig . 7 PSD of surge response metres metres 00 70 metres 100 metres 0.0 10.0- пишит -10.0+ 107.9910 111 5896 115.1881 118 7867 122.3852 125 0838 Time / sec • 10 LEGEND Simulation A -with wave damping ...
Page 181
... simulation . Bowers and Standing ( 1982 ) , quoting experimental data from model tests on a moored ship in surge , suggested that there should be at least 40 cycles of response in order to obtain consistent estimates of the standard ...
... simulation . Bowers and Standing ( 1982 ) , quoting experimental data from model tests on a moored ship in surge , suggested that there should be at least 40 cycles of response in order to obtain consistent estimates of the standard ...
Contents
A Study on the Stability Criteria of Semisubmersibles | 4 |
Sharan and Praveen Kalra | 6 |
CASE HISTORIES | 7 |
Copyright | |
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added mass amplitude analysis approximately average boundary condition boundary layer cable calculated circular cylinder components computed crest damping coefficient damping ratio density diffraction dimensionless displacement drag coefficient dynamic effects Ekofisk estimates experimental Figure first-order floating fluid force coefficients free surface frequency domain Green function heave horizontal hydrodynamic hydrodynamic forces incident wave inline force integral equation irregular lift force linear loads low frequency low-frequency surge maximum mean drift forces measured method mooring motion natural frequency nonlinear obtained Offshore Technology open boundary oscillation oscillatory flow parameters phase velocity platform predicted pressure random wave ratio regular waves Reynolds number Sarpkaya second order second-order wave shown simulation solitary waves solution spectral spectrum standard deviation surge response tank tanker tests transfer function transverse values velocity potential vertical vortex vortices wave damping wave drift damping wave elevation wave forces wave height wave-current