Show simple item record

dc.contributor.author
Vlachas, Konstantinos
dc.contributor.author
Tatsis, Konstantinos
dc.contributor.author
Agathos, Konstantinos
dc.contributor.author
Brink, Adam R.
dc.contributor.author
Chatzi, Eleni
dc.date.accessioned
2020-09-28T06:45:27Z
dc.date.available
2020-09-27T18:12:55Z
dc.date.available
2020-09-28T06:45:27Z
dc.date.issued
2020-09-09
dc.identifier.uri
http://hdl.handle.net/20.500.11850/442909
dc.identifier.doi
10.3929/ethz-b-000442909
dc.description.abstract
At the dawn of Industry 4.0, it has become apparent that assessment of engineered systems should be informed from the state of the system “as-is”. To this end, data needs to be fused with adequate and efficient system models. Such system models should account for the underlying physics and the possibly nonlinear dynamic processes involved. This paper introduces a physics-based parametric formulation for nonlinear structural systems. A Reduced Order Model (ROM) of the high fidelity system is developed, retaining the dependencies on system properties and on temporal and spectral characteristics of the excitation. The ROM formulation relies on i) Proper Orthogonal Decomposition applied to snapshots of the nonlinear response, and ii) manifold interpolation of the resulting projection bases. Its performance is evaluated on a 3D earthquake-excited shear frame with nonlinear couplings. The developed ROM can be exploited for a number of tasks including monitoring, diagnostics and residual life estimation of critical components.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
ETH Zurich, Environmental and Geomatic Engineering
en_US
dc.rights.uri
http://rightsstatements.org/page/InC-NC/1.0/
dc.subject
Reduced order model
en_US
dc.subject
Nonlinear dynamical systems
en_US
dc.subject
Earthquake ground motions
en_US
dc.subject
Parametric modeling
en_US
dc.title
A physics-based, local POD basis approach for multi-parametric reduced order models
en_US
dc.type
Conference Paper
dc.rights.license
In Copyright - Non-Commercial Use Permitted
ethz.size
12 p. accepted version; 27 p. presentation
en_US
ethz.version.deposit
submittedVersion
en_US
ethz.event
International Conference on Noise and Vibration Engineering (ISMA 2020) in conjunction with the 8th International Conference on Uncertainty in Structural Dynamics (USD 2020)
en_US
ethz.event.location
online
en_US
ethz.event.date
September 7-9, 2020
en_US
ethz.notes
Conference lecture held on September 9, 2020
en_US
ethz.grant
Smart Monitoring, Inspection and Life-Cycle Assessment of Wind Turbines
en_US
ethz.grant
Simulation-Driven and On-line Condition Monitoring with Applications to Aerospace
en_US
ethz.publication.place
Zurich
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.
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.grant.agreementno
679843
ethz.grant.agreementno
795917
ethz.grant.fundername
EC
ethz.grant.fundername
EC
ethz.grant.funderDoi
10.13039/501100000780
ethz.grant.funderDoi
10.13039/501100000780
ethz.grant.program
H2020
ethz.grant.program
H2020
ethz.date.deposited
2020-09-27T18:13:04Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-09-28T06:45:37Z
ethz.rosetta.lastUpdated
2020-09-28T06:45:37Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.atitle=A%20physics-based,%20local%20POD%20basis%20approach%20for%20multi-parametric%20reduced%20order%20models&rft.date=2020-09-09&rft.au=Vlachas,%20Konstantinos&Tatsis,%20Konstantinos&Agathos,%20Konstantinos&Brink,%20Adam%20R.&Chatzi,%20Eleni&rft.genre=proceeding&rft.btitle=A%20physics-based,%20local%20POD%20basis%20approach%20for%20multi-parametric%20reduced%20order%20models
 Search via SFX

Files in this item

Thumbnail
Thumbnail

Publication type

Show simple item record