Nonlinear Roll Damping of Ship Motions in Waves

Nonlinear roll damping has a profound influence on ship motions and stability in ocean waves. In this study, an experimental investigation is conducted on the nonlinear roll damping of a ship in regular and irregular waves. The random decrement method, previously used in linear roll damping predicti...

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Bibliographic Details
Published in:Journal of Offshore Mechanics and Arctic Engineering
Main Authors: Wu, Xiaorong, Tao, Longbin, Li, Yuanlin
Format: Article in Journal/Newspaper
Language:English
Published: ASME 2005
Subjects:
Online Access:http://hdl.handle.net/10072/4292
https://doi.org/10.1115/1.1951780
Description
Summary:Nonlinear roll damping has a profound influence on ship motions and stability in ocean waves. In this study, an experimental investigation is conducted on the nonlinear roll damping of a ship in regular and irregular waves. The random decrement method, previously used in linear roll damping prediction, is Extended to nonlinear roll damping estimation in the data process. The accuracy of the nonlinear roll damping obtained by using the random decrement method is found to be dependent on the values of the threshold and segment number. No Full Text