Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 10American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 346
... component . To compare the both results , the low frequency component shown in Fig.5 was subtracted from time series of Fig.4 ( b ) using FFT and inverse FFT method , and the high frequency component was shown in Fig.6 comparing with ...
... component . To compare the both results , the low frequency component shown in Fig.5 was subtracted from time series of Fig.4 ( b ) using FFT and inverse FFT method , and the high frequency component was shown in Fig.6 comparing with ...
Page 351
... component MEAN - 0.00 10.00 5.00 0.00 -5.00 10 16 20 26 30 MIN . -10.00 MAX - 3.42 S9111905 ( c ) high frequency component ( 5 minutes time series ) 2 6 10 16 20 25 30 MIN . MAX - 2.60 S9111905 10 15 20 25 30 MIN . MAX - 6.85 S9111905 ...
... component MEAN - 0.00 10.00 5.00 0.00 -5.00 10 16 20 26 30 MIN . -10.00 MAX - 3.42 S9111905 ( c ) high frequency component ( 5 minutes time series ) 2 6 10 16 20 25 30 MIN . MAX - 2.60 S9111905 10 15 20 25 30 MIN . MAX - 6.85 S9111905 ...
Page 561
... component . It shows that the new element is most efficient for this example , also with regard to computer time ... component Force end point A , x - component 5 Distributed load [ N / m ] 500 611 · component in x - direction -component ...
... component . It shows that the new element is most efficient for this example , also with regard to computer time ... component Force end point A , x - component 5 Distributed load [ N / m ] 500 611 · component in x - direction -component ...
Contents
CASE HISTORIES OFFSHORE STRUCTURES | 331 |
OFFSHORE TECHNOLOGY PART | 337 |
OFFSHORE STRUCTURE CONCEPTS | 361 |
Copyright | |
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acceleration accelerometers added mass amplitude axial beam behaviour bending stiffness cable calculated Campos Basin catenary coefficient compliant tower components curvature curves cylinder damping ratio deck deformation developed diameter displacement drag drag coefficient dynamic analysis dynamic response effect Ekofisk elastic Engineering equation finite element finite element method flexible pipe fluid force free-fall lifeboat frequency domain hydrodynamic hydrodynamic damping impact in-span installation jack jacket joint launch length lift force linear load Mathieu Mathieu equation measured Mechanics meters method mode mode shape motion natural frequency nodal nodes nonlinear obtained Offshore Structures OMAE operation oscillation parameters phase pile platform pressure rotation seabed semi-rigid shear shown in Figure skin friction soil solution SPUS static analysis stiffness matrix submarine subsea support point tension tether torque transverse values vector velocity vertical vessel vibration Volume I-B water depth