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TECHNICAL PAPERS

Prediction of the Hydrodynamic Parameters in the Coupled Heave and Pitch Motion Equations for Underwater Robotic Vehicles Using Measured Responses at Sea

[+] Author and Article Information
Ayman B. Mahfouz, Mahmoud R. Haddara

Faculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, NF, Canada A1B 3X5

Christopher D. Williams

National Research Council Canada, Institute for Marine Dynamics, St. John’s, NF, Canada A1B 3T5

J. Offshore Mech. Arct. Eng 123(3), 93-102 (Apr 20, 2001) (10 pages) doi:10.1115/1.1382593 History: Received December 02, 2000; Revised April 20, 2001
Copyright © 2001 by ASME
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References

Figures

Grahic Jump Location
Comparison between the random decrement and the free response (Case 2)
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Comparison between the random decrement and the free response (Case 2)
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Comparison between the random decrement and the free response (Case 3)
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Comparison between the random decrement and the free response (Case 3)
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Comparison between the random decrement and the free response for heave (Run 5-02)
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Comparison between the random decrement and the free response for pitch (Run 5-02)
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Comparison between the random decrement and the free response for heave (Run 19-0)
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Comparison between the random decrement and the free response for pitch (Run 19-0)
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Comparison between the simulated and the predicted free responses for heave (Case 1)
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Comparison between the simulated and the predicted free responses for pitch (Case 1)
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Comparison between the measured and the predicted free responses for heave (Run 5-02)
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Comparison between the measured and the predicted free responses for pitch (Run 5-02)
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Comparison between the measured and the predicted free responses for heave (Run 19-0)
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Comparison between the measured and the predicted free responses for pitch (Run 19-0)
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A photograph for the URV-model
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A photograph of the experimental setup of the URV-model in the wave tank
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Power spectral density function for heave motion (Case 1)
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Power spectral density function for pitch motion (Case 1)
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Power spectral density function for heave motion (Run 5-02)
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Power spectral density function for pitch motion (Run 5-02)
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Power spectral density function for heave motion (Run 19-0)
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Power spectral density function for pitch (Run 19-0)
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Feedforward neural networks
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Neural networks technique
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A narrow-band spectrum (JONSWAP)
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Comparison between the random decrement and the free response (Case 1)
Grahic Jump Location
Comparison between the random decrement and the free response (Case 1)

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