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TECHNICAL PAPERS

Extreme Response of Floating Structures in Combined Wind and Waves

[+] Author and Article Information
P. Teigen

Statoil Research Centre, Trondheim, Norway

A. Naess

Department of Structural Engineering, Norwegian University of Science and Technology, Trondheim, Norway

J. Offshore Mech. Arct. Eng 125(2), 87-93 (Apr 16, 2003) (7 pages) doi:10.1115/1.1554699 History: Received July 01, 2001; Revised October 01, 2001; Online April 16, 2003
Copyright © 2003 by ASME
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References

Teigen, P., and Naess, A., 2000, “Response Statistics of a Moored Structure in Short-Crested Waves,” OMAE’2000, New Orleans.
Ochi,  M. K., 1973, “On Prediction of Extreme Values,” J. Ship Res., 17(1), pp. 29–37.
Standing, R. G., 1990, “Estimation of Low Frequency Damping and Response of a Deep Draught Floater in Waves,” Proc. EUROMS’90, Trondheim.
Naess,  A., 1994, “Statistics of Combined Linear and Quadratic Springing Response of a TLP in Random Waves,” ASME J. Offshore Mech. Arct. Eng., 114, pp. 127–136.
Teigen,  P., and Naess,  A., 1999, “Stochastic Response Analysis of Deep Water Structures in Short-Crested Random Seas,” ASME J. Offshore Mech. Arct. Eng., 121, pp. 181–186.
Naess,  A., 1990, “Statistical Analysis of Nonlinear Second-Order Forces and Motions of Offshore Structures in Short-Crested Random Seas,” Probab. Eng. Mech., 5(4), pp. 192–204.
Naess,  A., and Ness,  G. M., 1992, “Second-Order Sum Frequency Response Statistics of Tethered Platforms in Random Waves,” Appl. Ocean. Res., 14(1), pp. 23–32.
Naess,  A., and Johnsen,  J. M., 1992, “An efficient Numerical Method for Calculating the Statistical Distribution of Combined First-Order and Wave-Drift Response,” ASME J. Offshore Mech. Arct. Eng., 114, pp. 195–204.
Ochi, M. K., 1990, “Applied Probability and Stochastic Processes in Engineering and Physical Sciences,” John Wiley & Sons, New York.
Teigen, P., and Niedzwecki, J. M., 1998, “Experimental and Numerical Assessment of Mini TLP for Benign Environments,” Proc. ISOPE’98, Montreal.
Teigen, P., and Niedzwecki, J. M., 1999, “Experiments and Analysis with Fully Coupled Mini-TLP/Barge System,” Proc. ISOPE’99, Brest.

Figures

Grahic Jump Location
Logarithmic plot of probability density functions for TLP surge response in a combination of wind and waves: Davenport wind spectrum. Hs=10 m,Tp=11 sec, and Vw=28 m/sec
Grahic Jump Location
Logarithmic plot of probability density functions for TLP surge response in a combination of wind and waves: NPD wind spectrum. Hs=10 m,Tp=11 sec, and Vw=28 m/sec
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Computer mesh of the submerged part of the TLP
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Comparison of the coss(θ−θ0) spreading function for various choices of s
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Sensitivity of mean surge offset to number of wave headings used in discretization of angular cosine distribution
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Sensitivity of standard deviation of linear surge motion to number of wave headings used in discretization of angular cosine distribution
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Sensitivity of standard deviation of low frequency surge motion to number of wave headings used in discretization of angular cosine distribution
Grahic Jump Location
Comparison of probability density function for TLP surge response in a combination of wind and waves, Davenport wind spectrum: Hs=10 m,Tp=11 sec, and Vw=28 m/sec
Grahic Jump Location
Comparison of probability density function for TLP surge response in a combination of wind and waves. NPD wind spectrum: Hs=10 m,Tp=11 sec, and Vw=28 m/sec

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