Proceedings of the ... International Conference on Offshore Mechanics and Arctic EngineeringAmerican Society of Mechanical Engineers, 1994 - Arctic regions |
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Page 226
organization can affect frequency content and spanwise correlation of the lift
force. The data also suggest that this phenomenon is frequency-dependent, and
will only occur for certain periodic motions of the cylinder at or near the shedding
...
organization can affect frequency content and spanwise correlation of the lift
force. The data also suggest that this phenomenon is frequency-dependent, and
will only occur for certain periodic motions of the cylinder at or near the shedding
...
Page 238
At frequencies above the lock-in boundary, as either cylinder frequency
increases or flow velocity decreases, added mass increases to a maximum near
2.0, analogous to the case of a fluid oscillating about a stationary cylinder.
At frequencies above the lock-in boundary, as either cylinder frequency
increases or flow velocity decreases, added mass increases to a maximum near
2.0, analogous to the case of a fluid oscillating about a stationary cylinder.
Page 309
Table 1: low frequency damping coefficients. FIGURE 3 SPECTRUMAND PHASE
SHIFT FROM FREQUENCY (FD) AND TIME. Low= 5 s High frequency motion 2 3
4 characteristics None 0.48 .56 uen 0.63 || 0.68 0.72 || 0.80 0.74 || 0 1 1.41 1.1 ...
Table 1: low frequency damping coefficients. FIGURE 3 SPECTRUMAND PHASE
SHIFT FROM FREQUENCY (FD) AND TIME. Low= 5 s High frequency motion 2 3
4 characteristics None 0.48 .56 uen 0.63 || 0.68 0.72 || 0.80 0.74 || 0 1 1.41 1.1 ...
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Contents
OCEAN WAVES AND ENERGY | 1 |
Load Control Method and Its Realization on an OWC Wave Power Converter | 19 |
Nonlinearity in CrestTrough Statistics of Bretschneider Seas | 27 |
Copyright | |
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Common terms and phrases
amplitude analysis applied approach assumed body boundary buoy calculated Circular coefficient compared compliant component considered correlation curve cylinder damping derived determined developed direction distribution domain drag drift dynamic effects energy Engineering equation experiments expressed field Figure flow fluid frequency function given height horizontal hydrodynamic increase installation interaction Journal length lift coefficient lift force linear load mass maximum mean measured method modes mooring motion nonlinear noted obtained Offshore operation oscillation peak period phase pipe platform potential predicted present pressure problem production random range ratio reference relative represent respectively response Reynolds number second-order shedding shown shows simulation solution spectrum structure surface Table Technology tests theory tower turbulence uniform values velocity vertical vibration vortex water depth wave wind