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TECHNICAL PAPERS

Experimental and Numerical Study of Coupled Dynamic Response of a Mini Tension Leg Platform

[+] Author and Article Information
Anitha Joseph, V. G. Idichandy

Department of Ocean Engineering, Indian Institute of Technology, Madras, India

S. K. Bhattacharyya

Department of Ocean Engineering, Indian Institute of Technology, Madras, IndiaFaculty of Engineering and Applied Science, Memorial University of Newfoundland, St. John’s, Canada Institute for Ocean Technology, National Research Council, St. John’s, Canada

J. Offshore Mech. Arct. Eng 126(4), 318-330 (Mar 07, 2005) (13 pages) doi:10.1115/1.1833358 History: Received June 15, 2003; Revised December 03, 2003; Online March 07, 2005
Copyright © 2004 by ASME
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References

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Figures

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Mini TLP model (scale 1:56)
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Geometrical details of computational fluid domain (all dimensions in mm)
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Finite element mesh of fluid domain
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Tether with equidistant, uniform lumped masses
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Modified tether with three attached masses (M: mass, B: buoyancy, Tt/Δ=0.17 (platform), f1=0.55 Hz,f2=0.93 Hz)
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Experimental setup for wave force measurement on rigidly fixed model
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Comparison of measured and computed diffraction force components on rigidly fixed model
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Comparison of RAOs (without hull-tether coupling)
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Mode shapes of mini TLP model with modified tethers (see Fig. 6)
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Tether profiles over one cycle (H=5 cm,f=0.35 Hz,T=2.86 s)
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Tether profiles over one cycle (H=5 cm,f=0.6 Hz,T=1.667 s)
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Tether profiles over one cycle (H=5 cm,f=1 Hz,T=1 s)
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Comparison of RAOs (with hull-tether coupling)
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Comparison of computed RAOs (with versus without hull-tether coupling)

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