Using wavelet transforms to analyze nonlinear ship rolling and heave-roll coupling
Using wavelet transforms to analyze nonlinear ship rolling and heave-roll coupling
The use of wavelet transforms is explored to investigate the nonlinear dynamical characteristics of ship roll and coupled heave-roll motion. The harmonic character, double period character and chaotic character are observed via a time–frequency window of the wavelet transform. Typical wave parameters in different stability regions are considered. Features such as restoring rolling, divergence rolling, steady state and chaotic responses of ship roll are obtained as well.
The investigation in this paper not only highlights the feasibility of using wavelet transforms in the analysis of nonlinear dynamic characteristics of ship rolling in waves, but also shows how it could enhance the analysis abilities.
wavelet transforms, ship, roll, heave-roll coupling, nonlinear, dynamic characteristics
912-926
Yin, Yu
b8f19e11-77e3-48fc-90c4-69d003823b90
Shenoi, R. Ajit
ff6065d2-d0bd-47d0-88d7-4c2ccbe95354
Zhu, Hangbin
30face4c-7156-464e-8f2b-d89d6200af84
Xia, Lijuan
4a4ff600-9c51-492e-8d63-8ff80e407cb6
May 2006
Yin, Yu
b8f19e11-77e3-48fc-90c4-69d003823b90
Shenoi, R. Ajit
ff6065d2-d0bd-47d0-88d7-4c2ccbe95354
Zhu, Hangbin
30face4c-7156-464e-8f2b-d89d6200af84
Xia, Lijuan
4a4ff600-9c51-492e-8d63-8ff80e407cb6
Yin, Yu, Shenoi, R. Ajit, Zhu, Hangbin and Xia, Lijuan
(2006)
Using wavelet transforms to analyze nonlinear ship rolling and heave-roll coupling.
Ocean Engineering, 33 (7), .
(doi:10.1016/j.oceaneng.2005.05.014).
Abstract
The use of wavelet transforms is explored to investigate the nonlinear dynamical characteristics of ship roll and coupled heave-roll motion. The harmonic character, double period character and chaotic character are observed via a time–frequency window of the wavelet transform. Typical wave parameters in different stability regions are considered. Features such as restoring rolling, divergence rolling, steady state and chaotic responses of ship roll are obtained as well.
The investigation in this paper not only highlights the feasibility of using wavelet transforms in the analysis of nonlinear dynamic characteristics of ship rolling in waves, but also shows how it could enhance the analysis abilities.
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More information
Submitted date: 8 December 2004
Published date: May 2006
Keywords:
wavelet transforms, ship, roll, heave-roll coupling, nonlinear, dynamic characteristics
Identifiers
Local EPrints ID: 27785
URI: http://eprints.soton.ac.uk/id/eprint/27785
ISSN: 0029-8018
PURE UUID: a6e87b6f-4659-4dcc-ad6d-549299d8e915
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Date deposited: 26 Apr 2006
Last modified: 15 Mar 2024 07:21
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Contributors
Author:
Yu Yin
Author:
R. Ajit Shenoi
Author:
Hangbin Zhu
Author:
Lijuan Xia
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