Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1991 - Arctic regions |
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Page 509
... regions or unstable in unstable regions . One result for the ninth instability region is shown in Figure 3. The response amplitudes , f are the values of numerical calculation at non- dimensional time = 100 . As can be seen from Figure ...
... regions or unstable in unstable regions . One result for the ninth instability region is shown in Figure 3. The response amplitudes , f are the values of numerical calculation at non- dimensional time = 100 . As can be seen from Figure ...
Page 510
... region only . It is also possible to obtain analytically the steady - state solution for the second and higher order instability regions . However , second and higher order approximations are needed and the calculation becomes very ...
... region only . It is also possible to obtain analytically the steady - state solution for the second and higher order instability regions . However , second and higher order approximations are needed and the calculation becomes very ...
Page 511
... regions of the Mathieu chart become zero . Therefore , in terms of parametric oscillation , slack tethers can be undoubtedly adopted in stable regions . However , in unstable regions , as can be seen from Figures 8 ( c ) and 9 ( c ) ...
... regions of the Mathieu chart become zero . Therefore , in terms of parametric oscillation , slack tethers can be undoubtedly adopted in stable regions . However , in unstable regions , as can be seen from Figures 8 ( c ) and 9 ( c ) ...
Contents
VORTEX SHEDDING AND VIBRATION | 187 |
OCEAN WAVES AND CURRENT | 209 |
COMPUTATIONAL METHODS | 247 |
Copyright | |
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added mass amplitude analysis approximately average body boundary condition cable calculated circular cylinder components computed correlation density diffraction displacement distribution drag coefficient dynamic effects Ekofisk Engineering experimental field Figure finite element floating flow fluid free surface frequency domain function Green function horizontal hydrodynamic hydrodynamic forces incident wave integral equation irregular waves length lift force linear load low-frequency matrix maximum measured method mode mode shapes mooring motion natural frequency nonlinear obtained Ocean Offshore Structures OMAE open boundary oscillation parameters phase velocity platform predicted present pressure problem random waves ratio response Reynolds number riser Sarpkaya seabed second-order ship simulation small forward solitary wave solution spectral spectrum stiffness surge tank tanker tension tether theory transverse values vector velocity potential vertical vessel vibration vortex vortices water depth wave drift damping wave forces wave height wave profile