Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 1; Volume 7, Part 1American Society of Mechanical Engineers, 1988 - Arctic regions |
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Page 88
... Fundamental frequency ( 1 ) 1 1 1 1 2 Frequency ( Hz ) 2.95 3.02 3.13 3.54 3.15 11.32 Mode No. 1 2 3 4 5 Natural 6.39 10.31 10.76 29.90 39.38 frequency ( Hz ) Modal Table 6 . 4.24 4.37 5.65 5.49 5.14 damping ( % ) Vibration direction J ...
... Fundamental frequency ( 1 ) 1 1 1 1 2 Frequency ( Hz ) 2.95 3.02 3.13 3.54 3.15 11.32 Mode No. 1 2 3 4 5 Natural 6.39 10.31 10.76 29.90 39.38 frequency ( Hz ) Modal Table 6 . 4.24 4.37 5.65 5.49 5.14 damping ( % ) Vibration direction J ...
Page 483
... natural frequency of the cable was measured over a range of tensions which pro- duced both taut and slack conditions . The cable was suspended horizontally with pinned - pinned end conditions . For the condi- tions shown , the cable ...
... natural frequency of the cable was measured over a range of tensions which pro- duced both taut and slack conditions . The cable was suspended horizontally with pinned - pinned end conditions . For the condi- tions shown , the cable ...
Page 488
... frequency " cross- over " behavior . This is complex phenomenon whereby three modes of the cable have the same natural frequency . These modes include a symmetric in - plane mode , and antisymmetric in - plane mode and an out - of ...
... frequency " cross- over " behavior . This is complex phenomenon whereby three modes of the cable have the same natural frequency . These modes include a symmetric in - plane mode , and antisymmetric in - plane mode and an out - of ...
Contents
FLOATING PRODUCTION SYSTEMS | 1 |
OFFSHORE MECHANICS | 23 |
Early Production Systems in the North | 31 |
Copyright | |
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adsorber amplitude analysis angle Arctic Engineering axial bending buoy buoyancy cable caisson calculated coefficient compliant tower components Conference on Offshore curve damage diameter displacement drag coefficient drilling dynamic effect equation equipment fatigue Figure finite element flexible floating production flow function horizontal hydrodynamic installation jacket kips length linear load marine mass matrix maximum measured Mechanics and Arctic method mode mode shapes model tests modulus mooring line mooring system motion natural frequency nonlinear obtained Offshore Mechanics Offshore Technology Conference operation parameters performance pile pipe pipe materials pipeline platform pressure production riser random wave ratio response rope rotation RPIT shear shear modulus shear strength shown in Fig simulation soil static stiffness strength stress structure subsea surface syntactic foam tendon turbine uranium vane velocity vertical vessel water depth wave forces wave height wave power weight wellhead wire