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TECHNICAL PAPERS

Experimental Investigation of Mooring Line Loading Using Large and Small-Scale Models

[+] Author and Article Information
Neil Kitney, David T. Brown

Department of Mechanical Engineering, University College London, London, United Kingdom

J. Offshore Mech. Arct. Eng 123(1), 1-9 (Nov 27, 2000) (9 pages) doi:10.1115/1.1342159 History: Received February 11, 2000; Revised November 27, 2000
Copyright © 2001 by ASME
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References

Figures

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UCL oscillation system mounted above test facility tank
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UCL mooring line suspended from triaxial load
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General arrangement of model-scale mooring line setup at CEHIPAR facility
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CEHIPAR oscillation system mounted above test facility tank
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ISSC system 1 line tension results for time domain numerical model compared with UCL and CEHIPAR experimental data. Arrows indicate range between minimum and maximum numerical prediction.
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ISSC system 1 line damping results for time domain numerical model compared with UCL and CEHIPAR experimental data. Arrows indicate range between minimum and maximum numerical prediction.
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Indicator diagram for ISSC wave drift test 2.1 using (a) CEHIPAR data, and (b) UCL data
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Indicator diagram for ISSC wave test 3.1 using (a) CEHIPAR data, and (b) UCL data
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Indicator diagram for ISSC bi-harmonic test 4.1 using (a) CEHIPAR data, and (b) UCL data
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Nondimensional dynamic tension; drift frequency oscillations, period constant at 5.5
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Nondimensional dynamic tension; wave frequency oscillations, period constant at 0.55
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Nondimensional dynamic tension; biharmonic excitation, drift amplitude, and period constant at 0.12 and 5.5, respectively
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Nondimensional dynamic tension; wave frequency oscillations, amplitude constant at 0.07
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Nondimensional dynamic tension; biharmonic excitation, drift amplitude, and period constant at 0.12 and 5.5, respectively
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Nondimensional damping; harmonic wave period constant at 0.55, biharmonic drift amplitude, and period constant at 0.12 and 5.5, respectively
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Nondimensional damping; harmonic wave amplitude constant at 0.07, bi-harmonic drift amplitude, and period constant at 0.12 and 5.5., respectively
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Indicator diagrams: (a) shows reducing wave period at constant amplitude of 0.06; (b) represents increasing wave amplitude at constant frequency of 0.55
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Indicator diagrams: (a) shows reducing superimposed wave period at constant amplitude of 0.06; (b) represents increasing superimposed wave amplitude at constant frequency of 0.55. Drift amplitude and frequency held constant at 0.12 and 5.5, respectively.

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