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 . Cp = 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 . Cp = 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 |
Hydrodynamic Forces on a Floating Cylinder in Waves of Finite Depth | 23 |
Wave Load Estimation in Deep Water as Affected by Wave Period Errors | 33 |
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added mass amplitude analysis angle approximately axial biofouling body breaker breaking waves calculated component computed Conference on Offshore cylinder damping coefficient diameter diffraction displacement distribution domain drag coefficient drag force dynamic effects exciting force experimental Figure flow fluid force coefficients forces acting free surface frequency domain function Green function harmonic Hermite polynomial hindcast hydrodynamic hydrodynamic forces ice mass in-line incident wave inertia integral interaction KC number load lowerhull maximum measured Mechanics and Arctic method Morison equation motion nondimensional nonlinear obtained Ocean Offshore Mechanics offshore structures oscillation panels parameters phase platform predicted present ratio Rayleigh distribution regular waves response second order semisubmersible shear shown in Fig simulation solution spectra spectral density spectrum superposition principle surface elevation values velocity potential vortex shedding w₁ water depth wave drift force wave forces wave height wave period