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 135
MEAN DRIFT FORCES ON A PAIR OF CYLINDERS IN A NARROW TANK A. N. Williams and J. H. Vazquez Department of Civil and Environmental Engineering University of Houston Houston , Texas HYDRODYNAMIC ANALYSIS OF SPM MOTIONS AND CABLE FORCES ...
MEAN DRIFT FORCES ON A PAIR OF CYLINDERS IN A NARROW TANK A. N. Williams and J. H. Vazquez Department of Civil and Environmental Engineering University of Houston Houston , Texas HYDRODYNAMIC ANALYSIS OF SPM MOTIONS AND CABLE FORCES ...
Page 138
... mean drift forces in the confined ( tank ) case and the open sea case at non - resonant frequencies is somewhat less . Thus , although for a large tank many resonant frequencies are present in the ka range of interest , at the non ...
... mean drift forces in the confined ( tank ) case and the open sea case at non - resonant frequencies is somewhat less . Thus , although for a large tank many resonant frequencies are present in the ka range of interest , at the non ...
Page 171
... mean approach is infinite . Relative to the natural surge period , time record lengths for the TPS ( 41 oscillations ) were longer than for the DDF ( 28 oscillations ) , and mean values of surge from the TPS geo - mean simulations are ...
... mean approach is infinite . Relative to the natural surge period , time record lengths for the TPS ( 41 oscillations ) were longer than for the DDF ( 28 oscillations ) , and mean values of surge from the TPS geo - mean simulations are ...
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