Chaotic Behavior of Ship Swaying Motions in Irregular Waves

Author

Hou, Jianjun ; Dong, Fang ; Han, Yundong

Author_Institution

Navig. Coll., Dalian Maritime Univ., Dalian

fYear

2008

fDate

18-21 Nov. 2008

Firstpage

2732

Lastpage

2737

Abstract

In this paper, the nonlinear mechanism of ship swaying motions in irregular waves is analyzed; the frequency spectrum plot, recurrence plot, 3-dimension phase portrait are exhibited of the ship motion time series and several key parameters, namely correlation dimension, Kolmogorov entropy and the largest Lyapunov exponent are calculated. The chaotic behavior of ship swaying motions in irregular waves is demonstrated qualitatively and quantitatively which provides theoretical basis and method for short term prediction.

Keywords

Lyapunov methods; chaos; nonlinear systems; ships; time series; vehicle dynamics; water waves; 3D phase portrait; Kolmogorov entropy; chaotic behavior; correlation dimension; frequency spectrum plot; irregular waves; largest Lyapunov exponent; nonlinear mechanism; recurrence plot; ship motion time series; ship swaying motion; Bifurcation; Chaos; Entropy; Frequency; Marine vehicles; Motion analysis; Navigation; Nonlinear equations; Nonlinear systems; Time series analysis; Chaos; irregular waves; nonlinearity; ship swaying motions;

fLanguage

English

Publisher

ieee

Conference_Titel

Young Computer Scientists, 2008. ICYCS 2008. The 9th International Conference for

Conference_Location

Hunan

Print_ISBN

978-0-7695-3398-8

Electronic_ISBN

978-0-7695-3398-8

Type

conf

DOI

10.1109/ICYCS.2008.46

Filename

4709412