Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 16, Part 1American Society of Mechanical Engineers, 1997 - Arctic regions |
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Page 319
... reduced by about 41 % if the optimum stepped pipe string with the optimum absorber is used . Figure 6 shows the ... reduced by using the optimum absorber for stress are well equalized , and that their values are a little smaller than ...
... reduced by about 41 % if the optimum stepped pipe string with the optimum absorber is used . Figure 6 shows the ... reduced by using the optimum absorber for stress are well equalized , and that their values are a little smaller than ...
Page 234
... reduced velocities in the lock - in regime and above . The result for 0.52 Hz is shown in Fig . 5 . Fig . 5 ( a ) shows the oscillation frequency due to vortex shedding . For high support oscillation amplitudes and U , ≈ 3-4 the fre ...
... reduced velocities in the lock - in regime and above . The result for 0.52 Hz is shown in Fig . 5 . Fig . 5 ( a ) shows the oscillation frequency due to vortex shedding . For high support oscillation amplitudes and U , ≈ 3-4 the fre ...
Page 245
... reduced velocity profile can be found as a function of each eigenfrequency and cylinder diameter according to Eq . ( 5 ) : U ( z ) UR ( z ) = f1 · D ( z ) ( 5 ) Each eigenfrequency f ; will give one reduced velocity profile along the ...
... reduced velocity profile can be found as a function of each eigenfrequency and cylinder diameter according to Eq . ( 5 ) : U ( z ) UR ( z ) = f1 · D ( z ) ( 5 ) Each eigenfrequency f ; will give one reduced velocity profile along the ...
Contents
HYDRODYNAMIC FORCES | 1 |
The Irregular Breaking Wave Forces on Vertical Wall | 13 |
Steady Drift Forces and Yaw Moment Due to Waves With Slow Current | 47 |
Copyright | |
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added mass amplitude analysis anchor angle axial stress breakwater cable caisson calculated catenary components computed configuration cylinder damping diameter diffraction displacement domain drag coefficient dynamic effect element Engineering equation evaluation excitation experimental experiments Fieldbus Figure flow fluid FPSO free surface function Green function guidewire heave horizontal hull hydrodynamic incident wave installation integral interaction irregular waves Japan length linear load matrix maximum measured method mode mooring line mooring system motion nonlinear numerical obtained Ocean Offshore Technology ASME oscillation parameters PETROBRAS piles pipe string pitch moment platform predicted present ratio response riser ship shown in Fig simulation sloshing pressure solution speed stress surge tank Technology ASME 1997 tension Tension Leg Platform theory third order tsunami vector velocity potential vertical vessel vortex shedding water depth wave force wave height wave period wave power