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dc.contributor.author
Buza, Gergely
dc.contributor.author
Haller, George
dc.contributor.author
Jain, Shobhit
dc.date.accessioned
2021-08-17T12:15:40Z
dc.date.available
2021-07-15T10:31:46Z
dc.date.available
2021-07-20T22:18:56Z
dc.date.available
2021-08-17T12:15:40Z
dc.date.issued
2021-09-15
dc.identifier.issn
1097-0207
dc.identifier.issn
0029-5981
dc.identifier.other
10.1002/nme.6740
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/494924
dc.description.abstract
We propose a reformulation for a recent integral equations approach to steady-state response computation for periodically forced nonlinear mechanical systems. This reformulation results in additional speed-up and better convergence. We show that the solutions of the reformulated equations are in one-to-one correspondence with those of the original integral equations and derive conditions under which a collocation-type approximation converges to the exact solution in the reformulated setting. Furthermore, we observe that model reduction using a selected set of vibration modes of the linearized system substantially enhances the computational performance. Finally, we discuss an open-source implementation of this approach and demonstrate the gains in computational performance using three examples that also include nonlinear finite-element models.
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.subject
integral equations
en_US
dc.subject
model order reduction
en_US
dc.subject
nonlinear oscillations
en_US
dc.subject
periodic response
en_US
dc.subject
structural dynamics
en_US
dc.title
Integral equations and model reduction for fast computation of nonlinear periodic response
en_US
dc.type
Journal Article
dc.date.published
2021-05-07
ethz.journal.title
International Journal for Numerical Methods in Engineering
ethz.journal.volume
122
en_US
ethz.journal.issue
17
en_US
ethz.journal.abbreviated
Int. J. Numer. Meth. Engng
ethz.pages.start
4637
en_US
ethz.pages.end
4659
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
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
ethz.leitzahl.certified
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
ethz.date.deposited
2021-07-15T10:32:27Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-08-17T12:15:48Z
ethz.rosetta.lastUpdated
2022-03-29T11:14:27Z
ethz.rosetta.versionExported
true
ethz.COinS
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