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dc.contributor.author
Wu, Long
dc.contributor.author
Tiso, Paolo
dc.contributor.author
Tatsis, Konstantinos
dc.contributor.author
Chatzi, Eleni
dc.contributor.author
van Keulen, Fred
dc.date.accessioned
2021-08-30T07:24:44Z
dc.date.available
2021-08-30T07:21:43Z
dc.date.available
2021-08-30T07:24:44Z
dc.date.issued
2019-01-15
dc.identifier.issn
1573-272X
dc.identifier.issn
1384-5640
dc.identifier.other
10.1007/s11044-018-09644-2
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/502842
dc.identifier.doi
10.3929/ethz-b-000502842
dc.description.abstract
This paper presents a novel model order reduction technique for 3D flexible multibody systems featuring nonlinear elastic behavior. We adopt the mean-axis floating frame approach in combination with an enhanced Rubin substructuring technique for the construction of the reduction basis. The standard Rubin reduction basis is augmented with the modal derivatives of both free-interface vibration modes and attachment modes to consider the bending–stretching coupling effects for each flexible body. The mean-axis frame generally yields relative displacements and rotations of smaller magnitude when compared to the one obtained by the nodal-fixed floating frame. This positively impacts the accuracy of the reduction basis. Also, when equipped with modal derivatives, the Rubin method better considers the geometric nonlinearities than the Craig–Bampton method, as it comprises vibration modes and modal derivatives featuring free motion of the interface. The nonlinear coupling between free-interface modes and attachment modes is also considered. Numerical tests confirm that the proposed method is more accurate than Craig–Bampton’s, a nodal fixed floating frame counterpart originally proposed in Wu and Tiso (Multibody Syst. Dyn. 36(4): 405–425, [2016]), and produces significant speed-ups. However, the offline cost is increased because the mean-axis formulation produces operators with decreased sparsity patterns.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Geometric nonlinearity
en_US
dc.subject
Floating frame of reference
en_US
dc.subject
Modal derivatives
en_US
dc.subject
Rubin substructuring
en_US
dc.subject
Mean-axis frame
en_US
dc.title
A modal derivatives enhanced Rubin substructuring method for geometrically nonlinear multibody systems
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2018-10-19
ethz.journal.title
Multibody System Dynamics
ethz.journal.volume
45
en_US
ethz.journal.issue
1
en_US
ethz.journal.abbreviated
Multibody syst. dyn.
ethz.pages.start
57
en_US
ethz.pages.end
85
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Smart Monitoring, Inspection and Life-Cycle Assessment of Wind Turbines
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02605 - Institut für Baustatik u. Konstruktion / Institute of Structural Engineering::03890 - Chatzi, Eleni / Chatzi, Eleni
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02618 - Institut für Mechanische Systeme / Institute of Mechanical Systems::03973 - Haller, George / Haller, George
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02618 - Institut für Mechanische Systeme / Institute of Mechanical Systems
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02605 - Institut für Baustatik u. Konstruktion / Institute of Structural Engineering::03890 - Chatzi, Eleni / Chatzi, Eleni
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02115 - Dep. Bau, Umwelt und Geomatik / Dep. of Civil, Env. and Geomatic Eng.::02605 - Institut für Baustatik u. Konstruktion / Institute of Structural Engineering::03890 - Chatzi, Eleni / Chatzi, Eleni
ethz.grant.agreementno
679843
ethz.grant.fundername
EC
ethz.grant.funderDoi
10.13039/501100000780
ethz.grant.program
H2020
ethz.date.deposited
2018-12-28T03:46:45Z
ethz.source
SCOPUS
ethz.source
BATCH
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2021-08-30T07:21:55Z
ethz.rosetta.lastUpdated
2022-03-29T11:21:35Z
ethz.rosetta.versionExported
true
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/313308
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/502378
ethz.COinS
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