METHOD FOR SHIP'S ROLLING PERIOD PREDICTION WITH REGARD TO NON-LINEARITY OF GZ CURVE

Wawrzynski Wojciech; Krata Przemyslaw

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METHOD FOR SHIP'S ROLLING PERIOD PREDICTION WITH REGARD TO NON-LINEARITY OF GZ CURVE

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摘要

The paper deals with the problem of prediction of the rolling period. A special emphasis is put on the practical application of the new method for rolling period prediction with regard to non-linearity of the GZ curve. The one degree-of-freedom rolling equation is applied with using the non-linear stiffness moment and linear damping moment formulas. A number of ships are considered to research the discrepancies between the pending GM-based IMO-recommended method and the results of conducted numerical simulations performed for a wide range of operational loading conditions. Since the research shows some drawbacks of the IMO formula for the ship rolling period, a new formula is worked out and proposed instead.

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来源
《Journal of teoretical and applied mechanics》 |2016年第4期|1329-1343|共15页
作者
Wawrzynski Wojciech; Krata Przemyslaw;
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作者单位

Gdynia Maritime Univ, Fac Nav, Dept Ship Operat, Dgynia, Poland;

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原文格式 PDF
正文语种英语
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关键词
ship natural roll period; GZ approximation; rolling prediction; safety against capsizing;

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METHOD FOR SHIP'S ROLLING PERIOD PREDICTION WITH REGARD TO NON-LINEARITY OF GZ CURVE

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