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 467
... damping ratios of the structure . The structure was ini- tially deformed by pulling it with a thread ( and tying it in position ) and then released suddenly ( by cutting the string ) to allow the structure to execute free vibration ...
... damping ratios of the structure . The structure was ini- tially deformed by pulling it with a thread ( and tying it in position ) and then released suddenly ( by cutting the string ) to allow the structure to execute free vibration ...
Page 499
... damping and the ratio between displaced mass and cylinder mass . These two components are habitually combined into one single parameter , the combined stability parameter ( also called " reduced damping " or " Scruton number " ) K1 S ...
... damping and the ratio between displaced mass and cylinder mass . These two components are habitually combined into one single parameter , the combined stability parameter ( also called " reduced damping " or " Scruton number " ) K1 S ...
Page 564
... Damping mechanisms The damping of flexible pipe has received a considerable amount of attention in the offshore engineering literature . Conventionally , energy loses are accounted for by assuming viscous damping due to component ...
... Damping mechanisms The damping of flexible pipe has received a considerable amount of attention in the offshore engineering literature . Conventionally , energy loses are accounted for by assuming viscous damping due to 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