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 142
... cable which touches bottom before it reaches the anchor , that the amount of cable lying on the bottom is given by : X , - X. = L 1 · ( 1 ) which then leads to the following transcendental equation ( assuming an inelastic cable ) where ...
... cable which touches bottom before it reaches the anchor , that the amount of cable lying on the bottom is given by : X , - X. = L 1 · ( 1 ) which then leads to the following transcendental equation ( assuming an inelastic cable ) where ...
Page 204
... cable in a shear , as discussed below . The range of excitation frequency for non - uniform flow conditions can be estimated as ; 2L AV Af , = S1 5:40 where St is the Stroubal qumber , U is the flow velocity normal to the cable , D is the ...
... cable in a shear , as discussed below . The range of excitation frequency for non - uniform flow conditions can be estimated as ; 2L AV Af , = S1 5:40 where St is the Stroubal qumber , U is the flow velocity normal to the cable , D is the ...
Page 204
... cable , D is the cable outer diameter , T is the tension , m is the total mass per unit length including added mass of the fluid , and L is the cable length . Lock - on response tends to be dominated by a single spectral peak at ƒ ~ ƒ ...
... cable , D is the cable outer diameter , T is the tension , m is the total mass per unit length including added mass of the fluid , and L is the cable length . Lock - on response tends to be dominated by a single spectral peak at ƒ ~ ƒ ...
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