Publications in Scientific Journals:
S. Floss, F. Czwielong, S. Becker, M. Kaltenbacher:
"Micro-perforated panels for noise reduction";
Elektrotechnik & Informationstechnik,
2
(2021).
English abstract:
Space limitations in duct applications, new industrial and health safety regulations require new absorber configurations. Micro-perforated panels (MPP) as used in micro-perforated absorbers (MPA) allow new sound absorber concepts in the category of metamaterials. In this contribution we investigate MPA designs for the low and mid-to-high frequency range and apply finite element (FE) simulations to precisely design absorber configurations for applications in room acoustics and axial fans. The investigations show that the MPA´s cavity configuration must be customized for the desired frequency range and has significant influence on fan performance when applied in a duct flow setup.
Keywords:
MPP; MPA; metamaterials; finite element; duct acoustic; axial fan
"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1007/s00502-021-00889-y
Electronic version of the publication:
https://publik.tuwien.ac.at/files/publik_296065.pdf
Created from the Publication Database of the Vienna University of Technology.