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
... modes of the MOB . We classify a normal mode as ' structural ' if a significant percent of the total potential energy associated with the normal mode comes from the connec- tors . Otherwise , it can be concluded that the mode consists ...
... modes of the MOB . We classify a normal mode as ' structural ' if a significant percent of the total potential energy associated with the normal mode comes from the connec- tors . Otherwise , it can be concluded that the mode consists ...
Page 278
Table 1 Principal characteristics of a module Table 2 Natural frequencies and modes - kdeck Upper Hull kdeck Length 280 m Breadth 152 m Mode Frequency ( rad / sec ) Description Depth 24.6 m Non - structural ; vertical , 5 0.153 Lower ...
Table 1 Principal characteristics of a module Table 2 Natural frequencies and modes - kdeck Upper Hull kdeck Length 280 m Breadth 152 m Mode Frequency ( rad / sec ) Description Depth 24.6 m Non - structural ; vertical , 5 0.153 Lower ...
Page 404
c . Mode 3 ( 306.826 Hz ) e . Mode 5 ( 521.568 Hz ) Figure 7. Dominant mode shapes of the stiffened plate It can be observed from Figure 7 that the first mode is a bending mode ( heavy transverse member dominant ) ; the second mode is a ...
c . Mode 3 ( 306.826 Hz ) e . Mode 5 ( 521.568 Hz ) Figure 7. Dominant mode shapes of the stiffened plate It can be observed from Figure 7 that the first mode is a bending mode ( heavy transverse member dominant ) ; the second mode is a ...
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