Parameter Identification of Nonlinear Ocean Mooring Systems Using the Hilbert Transform
- 1 February 1996
- journal article
- Published by ASME International in Journal of Offshore Mechanics and Arctic Engineering
- Vol. 118 (1), 29-36
- https://doi.org/10.1115/1.2828798
Abstract
We introduce and demonstrate the applicability of a parameter identification algorithm based on the Hilbert transform to nonlinear ocean mooring systems. The mooring dynamical system consists of a submerged small body and includes a geometrically nonlinear restoring force and a nonlinear dissipation function incorporating both viscous and structural damping. By combining a recently developed methodology with a generalized averaging procedure, parameter estimation from the slowly varying envelope dynamics is enabled. System backbone curves obtained from data generated by numerical simulation are compared to those obtained analytically and are found to be accurate. An example large-scale experiment is also considered.Keywords
This publication has 12 references indexed in Scilit:
- Handbook for Digital Signal ProcessingComputer Music Journal, 1995
- Non-linear system vibration analysis using Hilbert transform--II. Forced vibration analysis method 'Forcevib'Mechanical Systems and Signal Processing, 1994
- Non-linear system vibration analysis using Hilbert transform--I. Free vibration analysis method 'Freevib'Mechanical Systems and Signal Processing, 1994
- Nonlinear oscillations, bifurcations and chaos in a multi-point mooring system with a geometric nonlinearityApplied Ocean Research, 1992
- WAVE GROUP ANALYSIS BY THE HILBERT TRANSFORMCoastal Engineering Proceedings, 1988
- Averaging Methods in Nonlinear Dynamical SystemsPublished by Springer Nature ,1985
- Local properties of sea waves derived from a wave recordApplied Ocean Research, 1983
- Nonlinear OscillationsJournal of Applied Mechanics, 1980
- Marine HydrodynamicsPublished by MIT Press ,1977
- Forces on Cylinders and Spheres in a Sinusoidally Oscillating FluidJournal of Applied Mechanics, 1975