Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1991 - Arctic regions |
From inside the book
Results 1-3 of 93
Page 147
... damping at high frequen- cies . Thus , the knowledge of hydrodynamic damping has a significant impact on the determination of the TLP tendon loads . Not much is known about the heave damping characteristics of a TLP . In this study ...
... damping at high frequen- cies . Thus , the knowledge of hydrodynamic damping has a significant impact on the determination of the TLP tendon loads . Not much is known about the heave damping characteristics of a TLP . In this study ...
Page 149
... damping factor was considerably small than the measured ones . Since the damping was found to be mostly linear , the difference between the measured damping and radiation damping can be attributed to the linear viscous damping . Since ...
... damping factor was considerably small than the measured ones . Since the damping was found to be mostly linear , the difference between the measured damping and radiation damping can be attributed to the linear viscous damping . Since ...
Page 168
... damping ratio , in terms of the logarithmic decrement , was then expressed as follows : v = 8 / √82 + 4π2 = sw + dwv ( 14 ) Total low - frequency viscous damping was assumed to comprise still water damping and viscous wave drift damping ...
... damping ratio , in terms of the logarithmic decrement , was then expressed as follows : v = 8 / √82 + 4π2 = sw + dwv ( 14 ) Total low - frequency viscous damping was assumed to comprise still water damping and viscous wave drift damping ...
Contents
VORTEX SHEDDING AND VIBRATION | 187 |
OCEAN WAVES AND CURRENT | 209 |
COMPUTATIONAL METHODS | 247 |
Copyright | |
32 other sections not shown
Other editions - View all
Common terms and phrases
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