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TECHNICAL PAPERS

Coupled Nonlinear Barge Motions, Part II: Stochastic Models and Stability Analysis

[+] Author and Article Information
Solomon C. S. Yim, Tongchate Nakhata

Ocean Engineering Program Oregon State University Corvallis, OR 97331

Erick T. Huang

1100 23rd Avenue Naval Facilities Engineering Service Center Port Hueneme, CA 93043-4370

J. Offshore Mech. Arct. Eng 127(2), 83-95 (May 27, 2005) (13 pages) doi:10.1115/1.1884617 History: Received August 06, 2003; Revised March 23, 2004; Online May 27, 2005
Copyright © 2005 by ASME
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References

Figures

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Comparison of barge roll response time histories predicted by 2DOF and 1DOF models under (a) regular waves with H=6 ft. and T=8 s, and (b) random waves with Hs=4.7 ft. and Tp=8.2 s
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Comparison of barge roll response time histories predicted by 2DOF and 1DOF models under (a) regular waves with H=6.5 ft. and T=6 s, and (b) random waves with Hs=5.5 ft. and Tp=6.0 s
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(a) 1DOF model, and (b) 2DOF model path-integral solution prediction of probability density of roll response under random waves with Hs=4.7 ft. and Tp=8.2 s at time t=5 min
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(a) 1DOF model, and (b) 2DOF model path-integral solution prediction of probability density of roll response under random waves with Hs=5.5 ft. and Tp=5.5 s at time t=5 min
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Comparison of roll response marginal probability density between numerical predictions of 2DOF and 1DOF models at time t=5 min under random wave with (a) Hs=4.7 ft. and Tp=8.2 s, and (b) Hs=5.5 ft. and Tp=5.5 s
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Comparison of measured experimental heave and wave time histories under (a) regular wave with H=6 ft. and T=6 s, and (b) random wave with Hs=4.7 ft. and Tp=8.2 s
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Comparison of predicted barge roll response time histories predicted by 2DOF, 1DOF, and quasi-2DOF models; (a) regular waves with H=6.5 ft. and T=6 s, and (b) random waves with Hs=5.5 ft. and Tp=6.0 s
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Comparison of roll response marginal density at 5 minutes predicted by 2DOF, 1 DOF, and quasi-2DOF models under random wave excitation with Hs=5.5 ft. and Tp=5.5 s
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Analytical roll righting moment of barge considered
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(a) Probability density, and (b) reliability against capsizing of barge roll response to sea state 1 random waves
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(a) Probability density, and (b) reliability against capsizing of barge roll response to sea state 4 random waves
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(a) Probability density, and (b) reliability against capsizing of barge roll response to sea state 7 random waves
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(a) Probability density, and (b) reliability against capsizing of barge roll response to sea state 9 random waves
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Mean time to reach specified capsizing probabilities for a barge operating in sea states 3 through 9 obtained using quasi-2DOF model

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