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 156
... mean free surface has been examined . The beam at the waterline is 30 m and the natural sway period is 100 sec . The cylinder is restrained from oscillating in roll but is free to perform first order sway and heave motions . The second ...
... mean free surface has been examined . The beam at the waterline is 30 m and the natural sway period is 100 sec . The cylinder is restrained from oscillating in roll but is free to perform first order sway and heave motions . The second ...
Page 157
... mean wave drift force 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 ...
... mean wave drift force 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 ...
Page 158
... ( Mean value included ) H1 / 3 = 11 m . T2 = 12 sec . Co = 0.6 . Mean and slowly varying wave drift force damping , x simulated results , Rayleigh distribution . = Fig . 4 Expected largest slowdrift motion of circular cylinder ( B 30m ...
... ( Mean value included ) H1 / 3 = 11 m . T2 = 12 sec . Co = 0.6 . Mean and slowly varying wave drift force damping , x simulated results , Rayleigh distribution . = Fig . 4 Expected largest slowdrift motion of circular cylinder ( B 30m ...
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