Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volume 9American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 145
... moored in head seas , fore and aft , with linear springs which were pretensioned and never became slack during any test run . At the beginning of each test run , the vessel was held at an initial displacement from its equilibrium ...
... moored in head seas , fore and aft , with linear springs which were pretensioned and never became slack during any test run . At the beginning of each test run , the vessel was held at an initial displacement from its equilibrium ...
Page 149
... Moored Floating Structures " , Seventh Ocean Engineering Symposium , SNAJ , Japan , June 1984 . 2 . 3 . Cao , J.Z. , Fu , Y.G. and Fang , Y. , " The Low- Frequency Hydrodynamic Coefficients in Surge for a Semisubmersible " , Proceedings ...
... Moored Floating Structures " , Seventh Ocean Engineering Symposium , SNAJ , Japan , June 1984 . 2 . 3 . Cao , J.Z. , Fu , Y.G. and Fang , Y. , " The Low- Frequency Hydrodynamic Coefficients in Surge for a Semisubmersible " , Proceedings ...
Page 167
... MOORED VESSEL In the moored vessel case , we can regard the sea wave ex- citation as a measurable disturbance ( Astrom , 1984 ) . The mea- surable disturbances can be reduced with the aid of a properly designed feedforward technique ...
... MOORED VESSEL In the moored vessel case , we can regard the sea wave ex- citation as a measurable disturbance ( Astrom , 1984 ) . The mea- surable disturbances can be reduced with the aid of a properly designed feedforward technique ...
Contents
OCEAN WAVES | 1 |
Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |
OFFSHORE MECHANICS AND ARCTIC ENGINEERING | 25 |
Copyright | |
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acceleration added mass amplitude analysis boundary conditions calculated circular cylinder computed cosh crest cylinder array damping coefficient damping factor density diffraction domain drag coefficient drag force drift force dynamic effect equation estimated flow fluid force coefficients forces acting forward speed free surface heave horizontal hydrodynamic hydrodynamic forces incident wave inertia coefficients integral irregular Kc number lift force linear load low-frequency low-frequency oscillation maximum measured method motion nonlinear obtained offshore structures oscillatory parameters pile plate potential flow predicted quadratic rad/sec radiation condition ratio regular waves response Sarpkaya second order second-order semisubmersible shown in Figure simulation solution spectral density spectrum surface elevation surge swing tank tanker transfer function vector velocity potential viscous vortex shedding vortices water depth wave amplitude wave drift damping wave excitation wave force wave frequency wave groups wave height wave number wave period wave power