DC FieldValueLanguage
dc.contributor.authorOnken, G.-
dc.contributor.authorEvers, Karl-Ulrich-
dc.contributor.authorHaase, Andrea-
dc.contributor.authorJochmann, Peter-
dc.date.accessioned2020-10-07T13:45:45Z-
dc.date.available2020-10-07T13:45:45Z-
dc.date.issued2014-
dc.identifier.citation22nd International Conference on Port and Ocean Engineering under Arctic Conditions (POAC 2013) : Espoo, Finland, 9 - 13 June 2013 / [Aalto University]. - Red Hook, NY : Curran. - Vols. 1(2014) - 2(2014)de_DE
dc.identifier.isbn978-1-63266-549-2de_DE
dc.identifier.urihttp://hdl.handle.net/11420/7495-
dc.description.abstractA physical analogous model of the lighthouse Norstrømsgrund has been built and tested in a series of model tests in ice at HSVA. The dynamic behavior of the lighthouse is simplified as a SDOF-system (single degree of freedom) by translational displacement in the ice plane, which is found to be justified by full scale data. The model's natural frequency and stiffness are adjustable by correct choice of springs and additional mass. Several tests have proven the accuracy of adjustability. Stiffness as well as mass is subject to physical constraints, e.g. a minimum mass which can not be fallen short of and a maximum feasible stiffness. Due to these limitations, the model's stiffness had to be reduced. A reasonable approach to convert measured accelerations from model tests to the less compliant full scale structure has been found and used for the model test results. Several events of ice-induced vibrations have been observed. Measured forces and accelerations during dynamic ice-structure interaction at model scale are in good agreement with full scale measurements. The test set-up is suitable to provide realistic results on the dynamic behavior of cylindrical offshore structures. The paper describes the design of the test set-up, instrumentation and calibration, performance and analysis of conducted tests, and general findings.en
dc.language.isoende_DE
dc.publisherCurrande_DE
dc.subject.ddc600: Technikde_DE
dc.subject.ddc620: Ingenieurwissenschaftende_DE
dc.titleIce model tests with a cylindrical structure to investigate dynamic ice-structure interactionde_DE
dc.typeinProceedingsde_DE
dc.type.dinicontributionToPeriodical-
dcterms.DCMITypeText-
tuhh.abstract.englishA physical analogous model of the lighthouse Norstrømsgrund has been built and tested in a series of model tests in ice at HSVA. The dynamic behavior of the lighthouse is simplified as a SDOF-system (single degree of freedom) by translational displacement in the ice plane, which is found to be justified by full scale data. The model's natural frequency and stiffness are adjustable by correct choice of springs and additional mass. Several tests have proven the accuracy of adjustability. Stiffness as well as mass is subject to physical constraints, e.g. a minimum mass which can not be fallen short of and a maximum feasible stiffness. Due to these limitations, the model's stiffness had to be reduced. A reasonable approach to convert measured accelerations from model tests to the less compliant full scale structure has been found and used for the model test results. Several events of ice-induced vibrations have been observed. Measured forces and accelerations during dynamic ice-structure interaction at model scale are in good agreement with full scale measurements. The test set-up is suitable to provide realistic results on the dynamic behavior of cylindrical offshore structures. The paper describes the design of the test set-up, instrumentation and calibration, performance and analysis of conducted tests, and general findings.de_DE
tuhh.type.opusInProceedings (Aufsatz / Paper einer Konferenz etc.)-
dc.type.drivercontributionToPeriodical-
dc.type.casraiConference Paper-
dc.relation.conference22nd International Conference on Port and Ocean Engineering under Arctic Conditions, POAC 2013de_DE
dc.identifier.scopus2-s2.0-84905457329de_DE
local.status.inpressfalsede_DE
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_5794-
item.creatorOrcidOnken, G.-
item.creatorOrcidEvers, Karl-Ulrich-
item.creatorOrcidHaase, Andrea-
item.creatorOrcidJochmann, Peter-
item.languageiso639-1en-
item.cerifentitytypePublications-
item.openairetypeinProceedings-
item.grantfulltextnone-
item.creatorGNDOnken, G.-
item.creatorGNDEvers, Karl-Ulrich-
item.creatorGNDHaase, Andrea-
item.creatorGNDJochmann, Peter-
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