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Nonlinear roll damping of ship motions in waves

Lookup NU author(s): Professor Longbin Tao

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Abstract

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.

Publication metadata

Author(s): Wu X, Tao L, Li Y

Publication type: Article

Publication status: Published

Journal: Journal of Offshore Mechanics and Arctic Engineering, ASME

Year: 2005

Volume: 127

Issue: 3

Pages: 205-211

Print publication date: 01/08/2005

Date deposited: 07/05/2010

ISSN (print): 0892-7219

ISSN (electronic): 1528-896X

Publisher: ASME International

URL: http://dx.doi.org/10.1115/1.1951780

DOI: 10.1115/1.1951780

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