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TU Berlin

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M.Sc. Roman Kisler

Lupe

Area of Research

The key topic of my research at the chair of Engineering Acoustics of the Technische Universität Berlin deals with the general theoretical investigation of the coupling between airborne and structure-borne sound. A thorough theoretical and physical understanding of such mechanisms allows for an analytical modeling of arbitrary vibrating systems. Their structural vibrations can excite surrounding fluid to emit a significant amount of noise. To suppress the most dominant vibration modes, analytical acoustic models enable targeted optimizations of the structure’s geometry and material. These techniques can highly contribute to significant noise reduction. Those newly developed models are checked for their validity and accuracy with additional numerical methods and experimental setups.


The primary goal of this research is the utilization of analytical models for the design of novel plate silencers for broadband and low-frequency noise reduction in flow ducts. The applications of such specific silencers include ventilation and exhaust systems (e.g. inside automobiles and industrial plants), wind tunnels and numerous other flow ducts causing high noise emissions. As a result of their closed and smooth surface, plate silencers are a promising approach for high noise reduction with the advantages of their negligible pressure loss, high robustness, easy maintenance and compact size. The underlying physical mechanisms are highly sophisticated, which is demonstrated by the following snapshot of the computed sound pressure via numerical FEM (Finite Element Method) inside a generic plate silencer.

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Lupe

 

For this reason, analytical models are being developed within our research at the chair of Engineering Acoustics. They are intended to enable a fast and accurate design of plate silencers for their designated field of application. These kinds of models allow us to optimize plate silencers to their full potential in order to achieve the highest possible sound attenuation with a minimum of required installation space and low production costs.

Publications

Kisler, Roman and Sarradj, Ennes (2017). Modellierung der Schalldämpfung mehrschichtiger Plattenresonatoren in Strömungskanälen. Fortschritte der Akustik, 43. Deutsche Jahrestagung für Akustik, 6.-9. März 2017 in Kiel


Kisler, Roman and Sarradj, Ennes (2018). Plate Silencers for Broadband Low Frequency Sound Attenuation. Acta Acustica united with Acustica, 521-527.


Behn, Maximilian and Kisler, Roman and Tapken, Ulf (2016). Efficient Azimuthal Mode Analysis using Compressed Sensing. 22nd AIAA/CEAS Aeroacoustics Conference - AIAA paper 2016-3038


Kisler, Roman and Behn, Maximilian and Enghardt, Lars and Tapken, Ulf (2016). Azimutalmodenanalyse in Strömungskanälen von Turbomaschinen bei starker Unterabtastung mittels Compressed Sensing. Fortschritte der Akustik - DAGA, 1096–1099.


Kisler, Roman and Materne, Daniel and Geyer, Thomas F and Sarradj, Ennes (2018). Modularer Versuchsstand zur Charakterisierung von Plattenschalldämpfern. Fortschritte der Akustik, 44. Deutsche Jahrestagung für Akustik (DAGA), 441-444.


Address

M.Sc. Roman Kisler
Technische Universität Berlin
Institut für Strömungsmechanik und Technische Akustik
Fachgebiet Technische Akustik, Sekr. TA7
Einsteinufer 25
D-10587 Berlin
Tel.: ++49 +30 314-22440
Fax.: ++49 +30 314-25135

Zimmer: TA 359

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