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 3
... predicted values in ( 8 ) . Laboratory val- ues for envelope intervals were found to differ from linear predictions by more than 30 to 40 percent in some cases and were systematically smaller than those obtained from the linear theory ...
... predicted values in ( 8 ) . Laboratory val- ues for envelope intervals were found to differ from linear predictions by more than 30 to 40 percent in some cases and were systematically smaller than those obtained from the linear theory ...
Page 306
... prediction algorithm . The prediction error results are shown in figure 21 . The 5 - step - ahead prediction case is considered next . A 15th order AR model was used here and the predicted and actual motions are plotted in figure 22. The ...
... prediction algorithm . The prediction error results are shown in figure 21 . The 5 - step - ahead prediction case is considered next . A 15th order AR model was used here and the predicted and actual motions are plotted in figure 22. The ...
Page 308
... Prediction 50 40 30 20 10 Figure 8 : Predicted and Actual Tanker Yaw . 10 - step - ahead Prediction www . mmm -20 ᅡ -40 -10 -20 -30 -40 -80 -50 100 200 300 400 500 600 700 800 900 1000 0 100 200 300 400 500 600 700 800 900 1000 Time ...
... Prediction 50 40 30 20 10 Figure 8 : Predicted and Actual Tanker Yaw . 10 - step - ahead Prediction www . mmm -20 ᅡ -40 -10 -20 -30 -40 -80 -50 100 200 300 400 500 600 700 800 900 1000 0 100 200 300 400 500 600 700 800 900 1000 Time ...
Contents
OCEAN WAVES | 1 |
OFFSHORE TECHNOLOGY PART A | 17 |
Application of Optical Techniques to Water Surface Measurement | 27 |
Copyright | |
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added mass amplitude analysis calculated circular cylinder computed cosh damping coefficient damping factor density diffraction directional wave domain drag coefficient drag force drift force dynamic effect Engineering equation estimated experimental fluid force coefficients forces acting forward speed free surface heave horizontal hydrodynamic hydrodynamic forces incident wave inertia coefficients inline force integral irregular JONSWAP Kc number lift force linear load low-frequency low-frequency oscillation maximum measured method Moire Topography motion nonlinear obtained offshore structures parameters peak pile predicted quadratic rad/sec radiation condition ratio regular waves response resultant force Reynolds number Sarpkaya second-order semisubmersible shown in Figure simulation solution spectral density spectrum surface elevation surge swing tanker transfer function transverse force velocity potential viscous vortex shedding vortices water depth wave amplitude wave direction wave drift damping wave excitation wave force wave frequency wave height wave number wave period wave power