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 166
... vessel to the random seas . In this Section , we will summarize briefly the second - order prediction filtering method ( Koh et al . , 1984 , 1985 ) which will be used to stabilize the moored vessel . In the course of the discussion ...
... vessel to the random seas . In this Section , we will summarize briefly the second - order prediction filtering method ( Koh et al . , 1984 , 1985 ) which will be used to stabilize the moored vessel . In the course of the discussion ...
Page 167
... 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 . The ...
... 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 . The ...
Page 168
... vessel response to the random sea waves , is generated by a predictor in Fig . 1 and described in Section 2. If only vessel stabilization is of interest , the reference signal w ( n ) can be set equal to zero . The admissible control ...
... vessel response to the random sea waves , is generated by a predictor in Fig . 1 and described in Section 2. If only vessel stabilization is of interest , the reference signal w ( n ) can be set equal to zero . The admissible control ...
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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added mass amplitude analysis applied array assumed body boundary calculated circular cylinder coefficient comparison component computed considered constant corresponding crest cylinder damping defined depends depth determined direction distribution domain drag coefficient drift dynamic effect elevation Engineering equation estimated experimental experiments factor field Figure flow fluid forward frequency function given horizontal hydrodynamic incident increase inertia integral irregular Kc number length lift force linear load low-frequency maximum mean measured method moored motion nonlinear obtained Offshore oscillation parameters period pile plate potential predicted presented pressure problem radiation range reference regular waves respectively response second-order ship shown shows simulation solution spectra spectrum speed structure surface surge swing Table theory velocity vertical vessel vortex wave force wave height