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 423
... dynamic interaction with the platform during the impact , - a - - realistic description of the global dynamic be- haviour of the platform during the impact , detailed calculation of the transient hydrodynamic pressure forces acting on ...
... dynamic interaction with the platform during the impact , - a - - realistic description of the global dynamic be- haviour of the platform during the impact , detailed calculation of the transient hydrodynamic pressure forces acting on ...
Page 550
... dynamic tension of the towline . From these figures we can recognize that decrease of period of motion causes increase of dynamic tension , increase of length of portion of chain of total line decreases dynamic tension , and increase of ...
... dynamic tension of the towline . From these figures we can recognize that decrease of period of motion causes increase of dynamic tension , increase of length of portion of chain of total line decreases dynamic tension , and increase of ...
Page 676
DYNAMIC AMPLIFICATION FACTORS BASE SHEAR ( DAFS ) z = Ø Fe [ w / wn ] DAF ΟΜΟ MODAL ACCELERATION DBS = Σ ( MØ ) Ż - Fo DYNAMIC BASE SHEAR Shape Z - DIR . Z Z Ø mø m00. For relatively small amounts of damping , the inertia loads F1 and ...
DYNAMIC AMPLIFICATION FACTORS BASE SHEAR ( DAFS ) z = Ø Fe [ w / wn ] DAF ΟΜΟ MODAL ACCELERATION DBS = Σ ( MØ ) Ż - Fo DYNAMIC BASE SHEAR Shape Z - DIR . Z Z Ø mø m00. For relatively small amounts of damping , the inertia loads F1 and ...
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