Proceedings of the ... International Conference on Offshore Mechanics and Arctic Engineering, Volumes 1-2American Society of Mechanical Engineers, 1990 - Arctic regions |
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Page 303
... predicted for a few seconds ahead . The applications of ship motion prediction include diving bell motion compensation , landing aircraft and helicopters on ships with a reduced risk of accident occurrence , improved missile launching ...
... predicted for a few seconds ahead . The applications of ship motion prediction include diving bell motion compensation , landing aircraft and helicopters on ships with a reduced risk of accident occurrence , improved missile launching ...
Page 306
... prediction for roll is compared to the actual motion in fig 20. Here an 11th order AR model was used by the prediction algorithm . The prediction error results are shown in figure 21 . The 5 - step - ahead prediction case is considered ...
... prediction for roll is compared to the actual motion in fig 20. Here an 11th order AR model was used by the prediction algorithm . The prediction error results are shown in figure 21 . The 5 - step - ahead prediction case is considered ...
Page 310
... Prediction 20 Figure 19 : Prediction Error in Tanker Yaw . 20 - step - ahead Prediction 40 30 20 ᅡ 10 0 www -10- -20 15 10 ᅡ 5 -5 -10- -30 -40 100 200 300 400 500 600 700 800 900 1000 -15 400 500 600 700 800 900 Time ( s ) Time ( s ) ...
... Prediction 20 Figure 19 : Prediction Error in Tanker Yaw . 20 - step - ahead Prediction 40 30 20 ᅡ 10 0 www -10- -20 15 10 ᅡ 5 -5 -10- -30 -40 100 200 300 400 500 600 700 800 900 1000 -15 400 500 600 700 800 900 Time ( s ) Time ( s ) ...
Contents
Simulation of Hurricane Seas in a Multidirectional Wave Basin | 17 |
9 | 38 |
27 | 45 |
Copyright | |
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added mass amplitude analysis array calculated results circular cylinder cosh crane ship crest damping coefficient density directional wave displacement distribution domain drag coefficient drag force dynamic effect Engineering equation estimated experimental results flow fluid force coefficients forces acting forward speed free surface Green's function heave horizontal hydrodynamic hydrodynamic forces incident wave irregular Kc number lift force linear load low-frequency matrix maximum measured method mooring line motion nonlinear obtained offshore structures oscillation parameters pile potential theory predicted pressure random ratio Rayleigh distribution regular waves response Sarpkaya second-order semisubmersible ship motions shown in Figure simulation solution spectra spectral density spectrum spreading function surge tanker transfer function vector velocity potential vertical vessel vortex vortex shedding vortices water depth wave amplitude wave component wave drift wave force wave frequency wave groups wave height wave number wave period wave power