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 147
... damping for a moored semi- submersible platform during low - frequency surge motion is investigated . The result shows that the second order potential effect of waves as well as the viscous effect have an effect on the increase of low ...
... damping for a moored semi- submersible platform during low - frequency surge motion is investigated . The result shows that the second order potential effect of waves as well as the viscous effect have an effect on the increase of low ...
Page 153
... damping , mean and slowly varying wave drift force damping are important , that Newman's approximation can be used to calculate slowdrift excitation force and damping and that Rayleigh distribution can be used to calculate extreme ...
... damping , mean and slowly varying wave drift force damping are important , that Newman's approximation can be used to calculate slowdrift excitation force and damping and that Rayleigh distribution can be used to calculate extreme ...
Page 157
... damping is the only damping component , the damping ratio is 14.54 % . This relatively high damping ratio has caused the extreme value distribution to follow more closely to Næss ' method , in particular when number of oscillation ...
... damping is the only damping component , the damping ratio is 14.54 % . This relatively high damping ratio has caused the extreme value distribution to follow more closely to Næss ' method , in particular when number of oscillation ...
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