Ship's Rolling Motion Analysis from the Nonlinear Dynamics Point of View-V : Fractal Dimension of Rolling Motion for Fishing Vessel in Wind Waves

Kawashima, Rihei

doi:10.9749/jin.86.313

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2012

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“…Our study verified the Rapp et al result with real field measurement data. For the first time, Kawashima [25] estimated the correlation dimension for the time series data of ship roll angle in irregular waves.…”

Section: Introductionmentioning

confidence: 99%

Quasi-chaotic behaviors of narrow-band response of a non-deterministic resonant system: application to analysis of ship motion in irregular seas

Ueno

Fan

2012

Japan J. Indust. Appl. Math.

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This paper describes similarities between the narrow-band response of a resonant system excited by random inputs and low-dimensional chaos, with particular emphasis on the geometric characteristics of trajectories reconstructed in m-dimensional phase space from measured scalar time series data with a time-delay coordinate system. In this study, the time series data of ship roll angle in irregular waves were analyzed as an example of the narrow-band response of a resonant system. These time series data were measured by one of the authors in Tokyo Bay. The similarities between the narrow-band response of a resonant system excited by random inputs and low-dimensional chaos are verified by numerical simulation data.

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Section: Introductionmentioning

confidence: 99%