Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1990 - Arctic regions |
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Results 1-3 of 7
Page 394
... Modes of Oscillation An eigenvalue analysis of the flexible riser was performed and the eigenvalues are listed in Table II . The in - plane and the out - of - plane modes are indicated . The corresponding mode shapes of mode No. 7-10 ...
... Modes of Oscillation An eigenvalue analysis of the flexible riser was performed and the eigenvalues are listed in Table II . The in - plane and the out - of - plane modes are indicated . The corresponding mode shapes of mode No. 7-10 ...
Page 442
... modes 1 and 3. All damping contributions are represented using equivalent damping coefficients corresponding to 2.0 % and 1.5 % of critical for all modes for case I and case II , respectively . The 30 first undamped mode shapes of the ...
... modes 1 and 3. All damping contributions are represented using equivalent damping coefficients corresponding to 2.0 % and 1.5 % of critical for all modes for case I and case II , respectively . The 30 first undamped mode shapes of the ...
Page 77
... mode shapes . The combined stress is there- fore varying along the tether . The contribution from the bending response is highly depen- dent on the tether diameter and length , which determine the tether vibration natural periods ...
... mode shapes . The combined stress is there- fore varying along the tether . The contribution from the bending response is highly depen- dent on the tether diameter and length , which determine the tether vibration natural periods ...
Contents
Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |
9 | 38 |
27 | 45 |
Copyright | |
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added mass amplitude analysis array calculated results circular cylinder cosh crane ship crest damping coefficient density directional wave displacement distribution domain drag coefficient drag force dynamic effect Engineering equation estimated experimental results flow fluid force coefficients forces acting forward speed free surface Green's function heave horizontal hydrodynamic hydrodynamic forces incident wave irregular Kc number lift force linear load low-frequency matrix maximum measured method mooring line motion nonlinear obtained offshore structures oscillation parameters pile potential theory predicted pressure random ratio Rayleigh distribution regular waves response Sarpkaya second-order semisubmersible ship motions shown in Figure simulation solution spectra spectral density spectrum spreading function surge tanker transfer function vector velocity potential vertical vessel vortex vortex shedding vortices water depth wave amplitude wave component wave drift wave force wave frequency wave groups wave height wave number wave period wave power