Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 1American Society of Mechanical Engineers, 2006 - Arctic regions |
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Page 166
... Mode 1 36.30 36.26 Mode 2 26.46 26.56 0 Mode 3 19.87 19.78 0 20 40 60 80 120 Distance along riser from from bottom end ( m ) 100 140 160 Mode 4 14.94 14.94 Table 4 Summary of load cases Direction Period Case 1 Top motion Surge ( x ) 27s ...
... Mode 1 36.30 36.26 Mode 2 26.46 26.56 0 Mode 3 19.87 19.78 0 20 40 60 80 120 Distance along riser from from bottom end ( m ) 100 140 160 Mode 4 14.94 14.94 Table 4 Summary of load cases Direction Period Case 1 Top motion Surge ( x ) 27s ...
Page 402
... mode number excited q = index representing mode number used for the best - fit / = number below which it is considered low modes h = number above which it is considered high modes = Mode shape of th mode at ith sensor location A1 i , j ...
... mode number excited q = index representing mode number used for the best - fit / = number below which it is considered low modes h = number above which it is considered high modes = Mode shape of th mode at ith sensor location A1 i , j ...
Page 404
... mode in the entire range of modes is calculated using a least squares method . A matrix [ 2 ] represents the best fit of amplitudes from mode q through mode p . The pseudo inverse solution for the system of equations [ 4 ] { X } = [ B ] ...
... mode in the entire range of modes is calculated using a least squares method . A matrix [ 2 ] represents the best fit of amplitudes from mode q through mode p . The pseudo inverse solution for the system of equations [ 4 ] { X } = [ B ] ...
Contents
OFFSHORE TECHNOLOGY | 1 |
OMAE200692014 | 7 |
OMAE200692055 | 23 |
Copyright | |
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25th International Conference added mass amplitude analysis applied Arctic Engineering June ASME axial behavior bending bending moment boundary caisson calculated catenary coefficients collision computed Conference on Offshore configuration considered Copyright 2006 curve cylinder damping deck diameter displacement dynamic effects Engineering June 4-9 equation experimental fatigue damage floating force frequency domain function heave hull hydrodynamic impact interaction jacket linear LNG carrier matrix maximum measured Mechanics and Arctic method mode mode shapes model tests mooring lines motion natural frequency nodes nonlinear numerical obtained Ocean Offshore Mechanics oscillation parameters pile pipe plate platform predicted presented ratio response riser S-N curve sensor shear ship shown in Figure simulation soil spar spar platform static stiffness strakes stress surface Table tank Technology tendon transverse values velocity vertical vessel vibration vortex induced vibrations water depth wave height weld wind farm wind turbine