<div class="csl-bib-body">
<div class="csl-entry">Toth, F., & Strondl, M. (2023). Computational model order reduction for systems with radiation damping. In <i>Forum Acusticum 2023 - 10th Convention of the European Acoustics Association</i> (pp. 4207–4211). https://doi.org/10.61782/fa.2023.0333</div>
</div>
-
dc.identifier.uri
http://hdl.handle.net/20.500.12708/194859
-
dc.description.abstract
Radiation of waves in an open domain is a common case
for many applications in acoustics. Depending on the sys-
tem, the damping effect introduced may not be negligi-
ble. When using the finite element method to model such
problems, appropriate techniques like absorbing boundary
conditions or perfectly matched layers can be applied to
achieve free field radiation despite the domain truncation.
We show how the resulting quadratic eigenvalue problem
of an acoustic system with free radiation boundary condi-
tions can be solved. The resulting eigenmodes are clas-
sified into physical modes and computational modes due
to the domain truncation. A reduced-order model is con-
structed by projection into a modal subspace. We suggest
a selection criterion for modes to include in the basis using
a similarity criterion with respect to selected full model
solutions.
We apply the model order reduction to a simple 2D ex-
ample of a Helmholtz oscillator. Both the accuracy and
performance of the strategy are evaluated, showing highly
accurate results. Due to the high computational effort for
solving the eigenvalue problem, significant performance
improvements can only be expected from the reduction
technique if many evaluations of the reduced order model
are required.
en
dc.language.iso
en
-
dc.subject
model order reduction
en
dc.subject
open domain
en
dc.subject
free radiation
en
dc.subject
quadratic eigenvalue problem
en
dc.title
Computational model order reduction for systems with radiation damping
en
dc.type
Inproceedings
en
dc.type
Konferenzbeitrag
de
dc.description.startpage
4207
-
dc.description.endpage
4211
-
dc.type.category
Full-Paper Contribution
-
tuw.booktitle
Forum Acusticum 2023 - 10th Convention of the European Acoustics Association
-
tuw.researchTopic.id
C6
-
tuw.researchTopic.id
C3
-
tuw.researchTopic.name
Modeling and Simulation
-
tuw.researchTopic.name
Computational System Design
-
tuw.researchTopic.value
50
-
tuw.researchTopic.value
50
-
tuw.publication.orgunit
E325-03 - Forschungsbereich Messtechnik und Aktorik
-
tuw.publisher.doi
10.61782/fa.2023.0333
-
dc.description.numberOfPages
5
-
tuw.author.orcid
0009-0003-5284-0407
-
tuw.event.name
Forum Acusticum 2023 - 10th Convention of the European Acoustics Association