Stochastic Inverse Identification of Nonlinear Roll Damping Moment of a Ship Moving at Nonzero-Forward Speeds
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-22, 22 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-12-31
Country of Publication
Egypt
No. of Pages
22
Main Subjects
Abstract EN
The nonlinear responses of ship rolling motion characterized by a roll damping moment are of great interest to naval architects and ocean engineers.
Modeling and identification of the nonlinear damping moment are essential to incorporate the inherent nonlinearity in design, analysis, and control of a ship.
A stochastic nonparametric approach for identification of nonlinear damping in the general mechanical system has been presented in the literature (Han and Kinoshits 2012).
The method has been also applied to identification of the nonlinear damping moment of a ship at zero-forward speed (Han and Kinoshits 2013).
In the presence of forward speed, however, the characteristic of roll damping moment of a ship is significantly changed due to the lift effect.
In this paper, the stochastic inverse method is applied to identification of the nonlinear damping moment of a ship moving at nonzero-forward speed.
The workability and validity of the method are verified with laboratory tests under controlled conditions.
In experimental trials, two different types of ship rolling motion are considered: time-dependent transient motion and frequency-dependent periodic motion.
It is shown that this method enables the inherent nonlinearity in damping moment to be estimated, including its reliability analysis.
American Psychological Association (APA)
Han, S. L.& Kinoshita, Takeshi. 2012. Stochastic Inverse Identification of Nonlinear Roll Damping Moment of a Ship Moving at Nonzero-Forward Speeds. Mathematical Problems in Engineering،Vol. 2012, no. 2012, pp.1-22.
https://search.emarefa.net/detail/BIM-1001908
Modern Language Association (MLA)
Han, S. L.& Kinoshita, Takeshi. Stochastic Inverse Identification of Nonlinear Roll Damping Moment of a Ship Moving at Nonzero-Forward Speeds. Mathematical Problems in Engineering No. 2012 (2012), pp.1-22.
https://search.emarefa.net/detail/BIM-1001908
American Medical Association (AMA)
Han, S. L.& Kinoshita, Takeshi. Stochastic Inverse Identification of Nonlinear Roll Damping Moment of a Ship Moving at Nonzero-Forward Speeds. Mathematical Problems in Engineering. 2012. Vol. 2012, no. 2012, pp.1-22.
https://search.emarefa.net/detail/BIM-1001908
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1001908