Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 18, Part 1American Society of Mechanical Engineers, 1999 - Arctic regions |
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Page 275
... frequency was suffi- ciently close to the wave frequency , it was accepted as an actual natural frequency . The error measure used was ( w - w ) / @ l * 100 % . We used the same procedure to determine the natural fre- quencies of a ...
... frequency was suffi- ciently close to the wave frequency , it was accepted as an actual natural frequency . The error measure used was ( w - w ) / @ l * 100 % . We used the same procedure to determine the natural fre- quencies of a ...
Page 560
... frequencies , ( 11 ) ; ( t ) , and the The linear relationship ( if the spar had linear mooring properties ) would be a vertical line that crosses the frequency axis at this point ( f = 0.00375 Hz ) . Thus the curve in Figure 2 implies ...
... frequencies , ( 11 ) ; ( t ) , and the The linear relationship ( if the spar had linear mooring properties ) would be a vertical line that crosses the frequency axis at this point ( f = 0.00375 Hz ) . Thus the curve in Figure 2 implies ...
Page 563
... Frequency ( Hz ) Amplitude ( deg ) Frequency (. 5000 of 12.7 m with the cases of H = 6.4 m ( presented in Figures 9-10 ) and Hs = 2.4 m ( presented in Figures 11-12 ) reveal that the amplitude of the natural mode fluctuations decreases ...
... Frequency ( Hz ) Amplitude ( deg ) Frequency (. 5000 of 12.7 m with the cases of H = 6.4 m ( presented in Figures 9-10 ) and Hs = 2.4 m ( presented in Figures 11-12 ) reveal that the amplitude of the natural mode fluctuations decreases ...
Contents
HYDRODYNAMIC FORCES | 1 |
OMAE99OFT4071 | 9 |
OMAE99OFT4072 | 19 |
Copyright | |
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amplitude analysis angle applied approach approximately ASME assumed axial boundary buoy buoyancy cable calculated coefficient compared comparison components computed Conference configuration connector considered Copyright cylinder damping defined depending determine developed diameter direction discrete displacement distribution domain drag dynamic effect element Engineering equation experimental experiments expressed falling fatigue Figure floating flow fluid force FPSO frequency function geometry given height horizontal hydrodynamic increase initial International length lift force linear load Marine mass maximum mean measured Mechanics method mode module mooring line motion nonlinear obtained Offshore operation parameters performed period platform position prediction presented pressure problem range relative respectively response riser rope ship shown shows side simulation solution spheres spray stiffness stress structure surface Table tension tests transverse values velocity vertical vessel water depth wave