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
... solution of 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 ) ...
... solution of 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 ) ...
Page 510
... solutions . Of the perturbation techniques , the averaging method is employed in this work to solve the nonlinear Mathieu equation , equation ( 5 ) . The solution is considered only to a first approximation . Follow the averaging method ...
... solutions . Of the perturbation techniques , the averaging method is employed in this work to solve the nonlinear Mathieu equation , equation ( 5 ) . The solution is considered only to a first approximation . Follow the averaging method ...
Page 520
rigid - body translations and rotations of elements in nonlinear solution steps . These may be considered as a set of instantaneous local axes that are obtained as part of the solution process . 2.2 Finite Element Formulation The solutions ...
rigid - body translations and rotations of elements in nonlinear solution steps . These may be considered as a set of instantaneous local axes that are obtained as part of the solution process . 2.2 Finite Element Formulation The solutions ...
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