Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 2; Volume 8, Part 2American Society of Mechanical Engineers, 1989 - Arctic regions |
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Page 179
... ratios between 3 - D and 2 - D in - line forces are in the range 0.82 0.87 . This ratio holds also for the resultant forces . The transverse forces are significantly larger in 3 - D waves than in 2 - D waves , also as expected . The ratios ...
... ratios between 3 - D and 2 - D in - line forces are in the range 0.82 0.87 . This ratio holds also for the resultant forces . The transverse forces are significantly larger in 3 - D waves than in 2 - D waves , also as expected . The ratios ...
Page 198
... ratio fwfNw C ( 2 ) rms 5 y / d ☐ 0.3 0.5 3 + 0.7 2 1 0.2 0.4 0.6 f / f ᄆᄆ 0.8 Figure 13. Second harmonic lift force coefficient CL ( 2 ) rms as a function of frequency ratio fwfNw . CL ( 3 ) rms 2.0 1.6 y / d ☐ 0.3 0.5 1.2 + 0.7 ...
... ratio fwfNw C ( 2 ) rms 5 y / d ☐ 0.3 0.5 3 + 0.7 2 1 0.2 0.4 0.6 f / f ᄆᄆ 0.8 Figure 13. Second harmonic lift force coefficient CL ( 2 ) rms as a function of frequency ratio fwfNw . CL ( 3 ) rms 2.0 1.6 y / d ☐ 0.3 0.5 1.2 + 0.7 ...
Page 649
... ratio to that of the first bending mode is plotted as a function of Tb1 / , which is the ratio between the period of the first vibration mode of the beam and the impact duration time . As seen from Fig . 17 , relative Table 2 Stiffness ...
... ratio to that of the first bending mode is plotted as a function of Tb1 / , which is the ratio between the period of the first vibration mode of the beam and the impact duration time . As seen from Fig . 17 , relative Table 2 Stiffness ...
Contents
HYDRODYNAMIC FORCES | 1 |
WaveCurrent Force on Horizontal Cylinder | 7 |
Tensions on Silt Curtains in Currents and Waves | 13 |
Copyright | |
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added mass amplitude analysis approximation Arctic Engineering base shear breakwater caisson calculated circular cylinder components computed Conference on Offshore correlation damping density deterministic diameter distribution domain drag coefficient drag force drift force dynamic effect experimental experiments factor failure flume force coefficients form drag free surface frequency function Green's function hindcast horizontal hydrodynamic hydrodynamic force ice floe inertia irregular waves lift coefficient lift force linear maximum mean measured Mechanics and Arctic method mode motion nonlinear North Sea obtained Offshore Mechanics Offshore Structures order theory oscillation oscillatory flow parameters peak pipeline platform potential present pressure problem random range ratio reliability response Reynolds number Sarpkaya second order second-order ship shown in Figure simulation skin friction spectrum surge tension theory transverse force uncertainty variables velocity potential vibration viscous vortex shedding vortices water depth water particle wave force wave height zero