Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 2; Volume 7, Part 2American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 109
... drag force . Approximations to the fourth order cumulant function of the drag force were evaluated using Hermite polynomials . Analytical solutions were obtained for the coefficient of excess of response when the structure was idealized ...
... drag force . Approximations to the fourth order cumulant function of the drag force were evaluated using Hermite polynomials . Analytical solutions were obtained for the coefficient of excess of response when the structure was idealized ...
Page 328
... drag force on the fluid velocity . A common method to circumvent this difficulty is to linearize the drag force in such a way that the mean squared error is minimized , thus yielding a more manageable forcing function to facilitate the ...
... drag force on the fluid velocity . A common method to circumvent this difficulty is to linearize the drag force in such a way that the mean squared error is minimized , thus yielding a more manageable forcing function to facilitate the ...
Page 332
... DRAG FORCE SPECTRA PSD OF DRAG FORCE 2 0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 FREQ ( Hz ) Fig . 8 Ratio of drag force spectrum without and with damping region in sea state 1 . WITH DAMPING WITHOUT DAMPING 104 103 102 101 10o 10-1 10-2 10-3 10-4 ...
... DRAG FORCE SPECTRA PSD OF DRAG FORCE 2 0 0.0 0.1 0.2 0.3 0.4 0.5 0.6 FREQ ( Hz ) Fig . 8 Ratio of drag force spectrum without and with damping region in sea state 1 . WITH DAMPING WITHOUT DAMPING 104 103 102 101 10o 10-1 10-2 10-3 10-4 ...
Contents
Catchment Regions of Multiple Dynamic Responses in Nonlinear Problems of Offshore Mechanics | 15 |
OFFSHORE TECHNOLOGY GEOTECHNICAL ENGINEERING | 21 |
Hydrodynamic Forces on a Floating Cylinder in Waves of Finite Depth | 23 |
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added mass amplitude analysis approximately biofouling body boundary breaker breaking waves calculated circular cylinder component computed cylinder damping coefficient diameter diffraction domain drag coefficient drag force dynamic effects exciting force experimental Figure fluid force coefficients forces acting free surface function Green function harmonic Hermite polynomial hindcast hydrodynamic hydrodynamic forces ice mass in-line incident wave inertia integral interaction irregular Kc number linear wave theory load lowerhull maximum measured Mechanics and Arctic method nondimensional nonlinear obtained Ocean Offshore Mechanics offshore structures oscillation parameters platform predicted present ratio Rayleigh distribution regular waves response Reynolds number second order second-order semi-submersible platform semisubmersible shear flow shown simulation solution spectra spectral density spectrum superposition principle surface elevation surge motion tests values velocity potential vibrations vortex shedding w₁ water depth wave drift damping wave drift force wave forces wave frequency wave height wave period