Influence of righting moment curve on parametric roll motion in regular longitudinal waves

E. Pesman, M. Taylan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Parametric roll is a phenomenon which typically occurs in longitudinal waves. Although its theoretical existence has been known for decades, parametric roll attracted a great deal of interest in recent years. Stability accidents result from parametric roll make the topic more important because of the potential risks to money and human lives. In the present study, parametrically excited roll motion is modeled as a single degree of freedom system incorporating heave and pitch effects by means of restoring moment variations. The nonlinear roll model is solved by the averaging technique to avoid viable correlation between the responses and area under restoring moment curves. Nonlinear effects like discontinuous bifurcations were also introduced into the results. As a result, risk free regions, risky regions, risky regions due to discontinue bifurcations and extremely risky regions were determined.

Original languageEnglish
Title of host publicationSustainable Maritime Transportation and Exploitation of Sea Resources - Proceedings of the 14th International Congress of the International Maritime Association of the Mediterranean, IMAM 2011
Pages135-141
Number of pages7
Publication statusPublished - 2012
Event14th International Congress of the International Maritime Association of the Mediterranean, IMAM 2011 - Genova, Italy
Duration: 13 Sept 201116 Sept 2011

Publication series

NameSustainable Maritime Transportation and Exploitation of Sea Resources - Proceedings of the 14th International Congress of the International Maritime Association of the Mediterranean, IMAM 2011
Volume1

Conference

Conference14th International Congress of the International Maritime Association of the Mediterranean, IMAM 2011
Country/TerritoryItaly
CityGenova
Period13/09/1116/09/11

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