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 148
... presented in Fig . 4 . The added mass coefficient was computed from the measured natural period , To , the spring constant , K , and the semisubmersible's displaced mass , Ms , using the formula Ca = - ) 2 KT 0 - 4π 2 Ms ) / Ms ( 14 ) ...
... presented in Fig . 4 . The added mass coefficient was computed from the measured natural period , To , the spring constant , K , and the semisubmersible's displaced mass , Ms , using the formula Ca = - ) 2 KT 0 - 4π 2 Ms ) / Ms ( 14 ) ...
Page 149
... presented with reference to the tanker in Fig . 14. It can be seen in this figure that there are wave frequencies at which the semisubmersible exhibits far greater damping than the tanker . The added mass coefficient for the semisubmers ...
... presented with reference to the tanker in Fig . 14. It can be seen in this figure that there are wave frequencies at which the semisubmersible exhibits far greater damping than the tanker . The added mass coefficient for the semisubmers ...
Page 175
... presented results will be limited to our predictions based on the eigenfunction expansion technique . NUMERICAL RESULTS All reported predictions are based on head sea conditions of 180 ° unless indicated otherwise in the figure captions ...
... presented results will be limited to our predictions based on the eigenfunction expansion technique . NUMERICAL RESULTS All reported predictions are based on head sea conditions of 180 ° unless indicated otherwise in the figure captions ...
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