A semianalytical method is developed for the stochastic analysis of a nonlinear moored ocean structure subjected to narrow band random waves. The method is then used to investigate the probability distribution of extreme values of the responses. To verify the accuracy and capability of the method in handling complex nonlinear behavior of the nonlinear moored ocean structure, experimental results are employed to calibrate numerical simulations and the resulting probability distributions obtained from the semianalytical method. A nonlinear-structure nonlinearly damped model is employed to model the moored structure considered and the system coefficients are identified through the reverse multiple-input/single-output technique. An examination of the comparisons indicates that the structural response extreme value probability distributions obtained from the semianalytical predictions are quite accurate.
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February 2008
Research Papers
Stochastic Analysis of Nonlinear Responses of a Moored Structure Under Narrow Band Excitations
Solomon C. Yim,
Solomon C. Yim
Professor
Fellow ASME
Department of Civil Engineering,
Oregon State University
, Corvallis, OR 97331-2302
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Dongjun Yuk,
Dongjun Yuk
Post-Doctoral Fellow
Department of Civil Engineering,
Oregon State University
, Corvallis, OR 97331-2302
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Arvid Naess,
Arvid Naess
Professor
Fellow ASME
Department of Mathematical Science,
Norwegian University of Science and Technology
, NO-7491, Trondheim, Norway
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I-Ming Shih
I-Ming Shih
Former Graduate Student
Department of Civil Engineering,
Oregon State University
, Corvallis, OR 97331-2302
Search for other works by this author on:
Solomon C. Yim
Professor
Fellow ASME
Department of Civil Engineering,
Oregon State University
, Corvallis, OR 97331-2302
Dongjun Yuk
Post-Doctoral Fellow
Department of Civil Engineering,
Oregon State University
, Corvallis, OR 97331-2302
Arvid Naess
Professor
Fellow ASME
Department of Mathematical Science,
Norwegian University of Science and Technology
, NO-7491, Trondheim, Norway
I-Ming Shih
Former Graduate Student
Department of Civil Engineering,
Oregon State University
, Corvallis, OR 97331-2302J. Offshore Mech. Arct. Eng. Feb 2008, 130(1): 011004 (7 pages)
Published Online: January 29, 2008
Article history
Received:
December 29, 2005
Revised:
November 9, 2007
Published:
January 29, 2008
Citation
Yim, S. C., Yuk, D., Naess, A., and Shih, I. (January 29, 2008). "Stochastic Analysis of Nonlinear Responses of a Moored Structure Under Narrow Band Excitations." ASME. J. Offshore Mech. Arct. Eng. February 2008; 130(1): 011004. https://doi.org/10.1115/1.2827878
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