Modeling and Identification of a Nonlinear SDOF Moored Structure, Part 1—Hydrodynamic Models and Algorithms

[+] Author and Article Information
S. Narayanan

Skillings-Connolly, Inc., 5016 Lacey Boulevard S.E., Lacey, WA 98503 USAe-mail: chithra@skillings.com

S. C. S. Yim

Department of Civil Engineering, Oregon State University, Corvallis, OR 97331 USAe-mail: solomon.yim@oregonstate.edu

J. Offshore Mech. Arct. Eng 126(2), 175-182 (May 18, 2004) (8 pages) doi:10.1115/1.1710875 History: Received July 09, 2002; Revised September 27, 2003; Online May 18, 2004
Copyright © 2004 by ASME
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Grahic Jump Location
SDOF experimental set up: a) plan, b) profile view
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Comparison between the geometric model and approximate restoring force functions: a) force, b) relative error
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Schematic diagram of the SDOF system: a) system diagram for the calculation of wave velocity and acceleration, b) RV model, c) IFF model
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The nonlinear-structure linearly damped (NSLD) algorithm: a) with feedback, b) without feedback
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The nonlinear-structure coupled hydrodynamically damped (NSCHD) algorithm: a) with feedback, b) without feedback
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The nonlinear-structure nonlinearly-damped (NSND) algorithm a) with feedback b) without feedback



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