Sound Radiation of Aerodynamically Excited Flat Plates into Cavities

Journal article
(Online publication)


Publication Details

Author(s): Osterziel J, Zenger F, Becker S
Journal: Applied Sciences
Publication year: 2017
Volume: 7
ISSN: 2076-3417
Language: English


Abstract


Flow-induced vibrations and the sound radiation of flexible plate structures of different thickness mounted in a rigid plate are experimentally investigated. Therefore, flow properties and turbulent boundary layer parameters are determined through measurements with a hot-wire anemometer in an aeroacoustic wind tunnel. Furthermore, the excitation of the vibrating plate is examined by laser scanning vibrometry. To describe the sound radiation and the sound transmission of the flexible aluminium plates into cavities, a cuboid-shaped room with adjustable volume and 34 flush-mounted microphones is installed at the non flow-excited side of the aluminium plates. Results showed that the sound field inside the cavity is on the one hand dependent on the flow parameters and the plate thickness and on the other hand on the cavity volume which indirectly influences the level and the distribution of the sound pressure behind the flexible plate through different excited modes.


FAU Authors / FAU Editors

Becker, Stefan apl. Prof. Dr.
Lehrstuhl für Prozessmaschinen und Anlagentechnik
Osterziel, Johannes
Lehrstuhl für Sensorik
Zenger, Florian
Lehrstuhl für Prozessmaschinen und Anlagentechnik


How to cite

APA:
Osterziel, J., Zenger, F., & Becker, S. (2017). Sound Radiation of Aerodynamically Excited Flat Plates into Cavities. Applied Sciences, 7. https://dx.doi.org/10.3390/app7101062

MLA:
Osterziel, Johannes, Florian Zenger, and Stefan Becker. "Sound Radiation of Aerodynamically Excited Flat Plates into Cavities." Applied Sciences 7 (2017).

BibTeX: 

Last updated on 2019-19-06 at 08:17