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 509
... obtain a general solution like other differential equations and a stability chart which shows whether the system is in a stable or unstable condition . In this analysis , the stability chart is obtained with the nonlinear damping term ...
... obtain a general solution like other differential equations and a stability chart which shows whether the system is in a stable or unstable condition . In this analysis , the stability chart is obtained with the nonlinear damping term ...
Page 632
... obtained . In Figure 3 - 6 computed RMS responses in the extreme condition are presented . The results are obtained by both frequency domain and time domain approaches . Among the institutions represented in the given figures , the low ...
... obtained . In Figure 3 - 6 computed RMS responses in the extreme condition are presented . The results are obtained by both frequency domain and time domain approaches . Among the institutions represented in the given figures , the low ...
Page 663
... obtained by separating the ac- celeration in Eq . ( 53 ) : [ M2 ' ] = pw [ S ] [ H ] ̄1 [ G ] - ( 54 ) where [ Ma ' ] = added mass matrix normal to the shell element . In order to superpose the added mass to the structur- al matrix ...
... obtained by separating the ac- celeration in Eq . ( 53 ) : [ M2 ' ] = pw [ S ] [ H ] ̄1 [ G ] - ( 54 ) where [ Ma ' ] = added mass matrix normal to the shell element . In order to superpose the added mass to the structur- al matrix ...
Contents
CASE HISTORIES OFFSHORE STRUCTURES | 331 |
OFFSHORE TECHNOLOGY PART | 337 |
OFFSHORE STRUCTURE CONCEPTS | 361 |
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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