Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.5146
DC FieldValueLanguage
dc.contributor.authorDostal, Leo-
dc.contributor.authorHollm, Marten-
dc.contributor.authorMaki, Atsuo-
dc.date.accessioned2023-05-23T06:02:08Z-
dc.date.available2023-05-23T06:02:08Z-
dc.date.issued2023-08-01-
dc.identifier.citationOcean Engineering 281: 114751 (2023-08-01 in press)de_DE
dc.identifier.issn0029-8018de_DE
dc.identifier.urihttp://hdl.handle.net/11420/15334-
dc.description.abstractIt is important to know the mean time until critical roll motion occurs in various operating and sea conditions, in order to determine and ensure the safety of ship designs and operating ships. Since typical ocean waves are irregular, the forcing and roll response of the ship is considered to be a stochastic process of colored noise type. However, the simulation of the corresponding first passage times is very time consuming. Therefore, an approach for the determination of mean first passage times of critical roll motion of ships is proposed in this paper which needs much less computation time. This approach is based on explicit formulas for the roll energy of the ship. These formulas are used to determine the mean first passage times based on integral expressions, which were previously obtained. The resulting integral expressions can be computed very fast using standard quadrature formulas. Moreover, the underlying model for ship dynamics is extended by introducing a new effective wave for short-crested sea states. This is an extension to the improved Grim's effective wave concept.en
dc.language.isoende_DE
dc.publisherElsevier Sciencede_DE
dc.relation.ispartofOcean engineeringde_DE
dc.rightsCC BY-NC-ND 4.0de_DE
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/de_DE
dc.subjectEffective wavede_DE
dc.subjectFirst passage timesde_DE
dc.subjectIrregular seasde_DE
dc.subject.ddc530: Physikde_DE
dc.subject.ddc600: Technikde_DE
dc.subject.ddc620: Ingenieurwissenschaftende_DE
dc.titleFirst passage times for nonlinear ship dynamics using Gaussian random fields and effective wavesde_DE
dc.typeArticlede_DE
dc.identifier.doi10.15480/882.5146-
dc.type.diniarticle-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-882.0220639-
tuhh.oai.showfalsede_DE
tuhh.abstract.englishIt is important to know the mean time until critical roll motion occurs in various operating and sea conditions, in order to determine and ensure the safety of ship designs and operating ships. Since typical ocean waves are irregular, the forcing and roll response of the ship is considered to be a stochastic process of colored noise type. However, the simulation of the corresponding first passage times is very time consuming. Therefore, an approach for the determination of mean first passage times of critical roll motion of ships is proposed in this paper which needs much less computation time. This approach is based on explicit formulas for the roll energy of the ship. These formulas are used to determine the mean first passage times based on integral expressions, which were previously obtained. The resulting integral expressions can be computed very fast using standard quadrature formulas. Moreover, the underlying model for ship dynamics is extended by introducing a new effective wave for short-crested sea states. This is an extension to the improved Grim's effective wave concept.de_DE
tuhh.publisher.doi10.1016/j.oceaneng.2023.114751-
tuhh.publication.instituteMechanik und Meerestechnik M-13de_DE
tuhh.identifier.doi10.15480/882.5146-
tuhh.type.opus(wissenschaftlicher) Artikel-
dc.type.driverarticle-
dc.type.casraiJournal Article-
tuhh.container.volume281de_DE
dc.rights.nationallicensefalsede_DE
dc.identifier.scopus2-s2.0-85158907647de_DE
tuhh.container.articlenumber114751de_DE
local.status.inpresstruede_DE
local.type.versionsubmittedVersionde_DE
datacite.resourceTypeArticle-
datacite.resourceTypeGeneralJournalArticle-
item.grantfulltextembargo_20250731-
item.creatorGNDDostal, Leo-
item.creatorGNDHollm, Marten-
item.creatorGNDMaki, Atsuo-
item.languageiso639-1en-
item.fulltextWith Fulltext-
item.openairetypeArticle-
item.mappedtypeArticle-
item.creatorOrcidDostal, Leo-
item.creatorOrcidHollm, Marten-
item.creatorOrcidMaki, Atsuo-
item.cerifentitytypePublications-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
crisitem.author.deptMechanik und Meerestechnik M-13-
crisitem.author.deptMechanik und Meerestechnik M-13-
crisitem.author.orcid0000-0002-0365-2587-
crisitem.author.orcid0000-0001-5139-8918-
crisitem.author.orcid0000-0002-2819-1297-
crisitem.author.parentorgStudiendekanat Maschinenbau-
crisitem.author.parentorgStudiendekanat Maschinenbau-
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