DC FieldValueLanguage
dc.contributor.authorChai, Wei-
dc.contributor.authorDostal, Leo-
dc.contributor.authorNaess, Arvid-
dc.contributor.authorLeira, Bernt J.-
dc.date.accessioned2019-06-12T14:44:17Z-
dc.date.available2019-06-12T14:44:17Z-
dc.date.issued2018-12-
dc.identifier.citationJournal of Marine Science and Technology (Japan) 4 (23): 854-865 (2018-12)de_DE
dc.identifier.issn0948-4280de_DE
dc.identifier.urihttp://hdl.handle.net/11420/2760-
dc.description.abstractIn this paper, the energy-based stochastic averaging method and the path integration method are applied to study the stochastic response of the nonlinear roll motion in random beam seas. Specifically, the Markov diffusion theory is applied to describe the random roll motion such that the probabilistic properties of the ship roll motion are governed by the Fokker–Planck (FP) equation. The stochastic averaging method focuses on the roll energy envelope process and reduces the difficulty in calculating the stochastic response via a dimensional reduction of the original system. In contrast, the path integration method is based on the Markov property of the original dynamical system and provides approximate solutions to the FP equation by linking the explicitly known local solutions. Although the stochastic averaging technique is well established in the study of the stochastic responses of various dynamical systems, its accuracy for determining the high-level roll response has not yet been a focus of study. This paper aims to provide a comparative study for the performance of the two above-mentioned methods; additionally, the advantages and shortcomings of using each method for studying the nonlinear roll motion in beam seas are demonstrated by practical calculations.en
dc.language.isoende_DE
dc.relation.ispartofJournal of marine science and technology (Japan)de_DE
dc.titleA comparative study of the stochastic averaging method and the path integration method for nonlinear ship roll motion in random beam seasde_DE
dc.typeArticlede_DE
dc.identifier.urnurn:nbn:de:gbv:830-882.035957-
dc.type.diniarticle-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-882.035957-
tuhh.abstract.englishIn this paper, the energy-based stochastic averaging method and the path integration method are applied to study the stochastic response of the nonlinear roll motion in random beam seas. Specifically, the Markov diffusion theory is applied to describe the random roll motion such that the probabilistic properties of the ship roll motion are governed by the Fokker–Planck (FP) equation. The stochastic averaging method focuses on the roll energy envelope process and reduces the difficulty in calculating the stochastic response via a dimensional reduction of the original system. In contrast, the path integration method is based on the Markov property of the original dynamical system and provides approximate solutions to the FP equation by linking the explicitly known local solutions. Although the stochastic averaging technique is well established in the study of the stochastic responses of various dynamical systems, its accuracy for determining the high-level roll response has not yet been a focus of study. This paper aims to provide a comparative study for the performance of the two above-mentioned methods; additionally, the advantages and shortcomings of using each method for studying the nonlinear roll motion in beam seas are demonstrated by practical calculations.de_DE
tuhh.publisher.doi10.1007/s00773-017-0515-1-
tuhh.publication.instituteMechanik und Meerestechnik M-13de_DE
tuhh.type.opus(wissenschaftlicher) Artikel-
tuhh.institute.germanMechanik und Meerestechnik M-13de
tuhh.institute.englishMechanik und Meerestechnik M-13de_DE
tuhh.gvk.hasppnfalse-
dc.type.driverarticle-
dc.type.casraiJournal Article-
tuhh.container.issue4de_DE
tuhh.container.volume23de_DE
tuhh.container.startpage854de_DE
tuhh.container.endpage865de_DE
item.grantfulltextnone-
item.creatorGNDChai, Wei-
item.creatorGNDDostal, Leo-
item.creatorGNDNaess, Arvid-
item.creatorGNDLeira, Bernt J.-
item.languageiso639-1other-
item.fulltextNo Fulltext-
item.creatorOrcidChai, Wei-
item.creatorOrcidDostal, Leo-
item.creatorOrcidNaess, Arvid-
item.creatorOrcidLeira, Bernt J.-
crisitem.author.deptMechanik und Meerestechnik M-13-
crisitem.author.orcid0000-0003-4847-4902-
crisitem.author.orcid0000-0002-0365-2587-
crisitem.author.orcid0000-0002-2084-0088-
crisitem.author.parentorgStudiendekanat Maschinenbau-
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