Title :
Chaotic Behavior of Ship Swaying Motions in Irregular Waves
Author :
Hou, Jianjun ; Dong, Fang ; Han, Yundong
Author_Institution :
Navig. Coll., Dalian Maritime Univ., Dalian
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;
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
DOI :
10.1109/ICYCS.2008.46
