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<figure id="fig:plot1"> | |||
[[File:Porous_absorber.png|480px|thumb|right|<caption>Sketch of the geometry. The porous material is marked in blue, the acoustic source by <math>q</math>.</caption>]] | |||
</figure> | |||
<figure id="fig:tf"> | |||
[[File:Porous_absorber_frf.png|480px|thumb|right|<caption>Frequency response function.</caption>]] | |||
</figure> | |||
==Description== | ==Description== | ||
Revision as of 14:01, 27 June 2023
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Description
The Porous absorber benchmark models the sound pressure in a cavity excited by a single harmonic load. One side of the cavity is covered by a layer of poroelastic material, which adds dissipation to the system. The geometry of this model follows [1]. Various projection-based model order reduction methods have been applied and compared using this example as a benchmark in [2].
References
- ↑ R. Rumpler, P. Göransson, J.-F. Deü. "A finite element approach combining a reduced-order system, Padé approximants, and an adaptive frequency windowing for fast multi-frequency solution of poro-acoustic problems", International Journal for Numerical Methods in Engineering, 97: 759-784, 2014.
- ↑ Q. Aumann, S. W. R. Werner. "Structured model order reduction for vibro-acoustic problems using interpolation and balancing methods", Journal of Sound and Vibration, 543: 117363, 2023.