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
... period л ) ( Even solution of period 2л ) ( Odd solution of period л ) ( Odd solution of period 2л ) ( 7 ) If the above series are substituted in turn into Equation . ( 6 ) and the coefficients of cos ( 2nt ) , cos ( 2nt ) , cos ( 2n + ...
... period л ) ( Even solution of period 2л ) ( Odd solution of period л ) ( Odd solution of period 2л ) ( 7 ) If the above series are substituted in turn into Equation . ( 6 ) and the coefficients of cos ( 2nt ) , cos ( 2nt ) , cos ( 2n + ...
Page 595
... period vibrations , but also to far - field long period earthquakes nucleating in the northern plate boundaries ( 6 ) . Since typical deep sea fixed platforms have long periods , it is important to assess their vulnerability to such ...
... period vibrations , but also to far - field long period earthquakes nucleating in the northern plate boundaries ( 6 ) . Since typical deep sea fixed platforms have long periods , it is important to assess their vulnerability to such ...
Page 597
... period of the analysed platforms are designed to lie on the flat part of the spectrum , between periods of 0.13 and 0.7 seconds , then all structures will be subjected to the same maximum base shear , regardless of their joint behaviour ...
... period of the analysed platforms are designed to lie on the flat part of the spectrum , between periods of 0.13 and 0.7 seconds , then all structures will be subjected to the same maximum base shear , regardless of their joint behaviour ...
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