Application of the scattering matrix method to evaluate acoustic mufflers properties

• Autorzy: Gorazd Łukasz

Identyfikatory

DOI

10.21008/j.0860-6897.2022.2.04

• Języki publikacji: EN

Abstrakty

EN

The aim of the paper is to analyse acoustic reflective muffler applying the scattering matrix method. In general, the method is based on dividing the muffler/system into separate subsystems and apply the acoustic multi-ports theory to calculate the scattering matrix of each element to finally combine the results and obtain the scattering matrix of the entire system/muffler. The multi-port procedure is derived from the theory of electric networks and allows to analyse acoustic devises of complex geometry with prescribed accuracy. Based on the scattering matrix, the transmission loss was determined.

Słowa kluczowe

EN

cylindrical duct; reflective muffler; scattering matrix; multi-port method

PL

kanał cylindryczny; tłumik refleksyjny; macierz rozproszenia; metoda wieloportowa

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2022
• Tom: Vol. 33, nr 2
• Strony: art. no. 2022204
• Opis fizyczny: Bibliogr. 13 poz., rys., wykr.

Twórcy

autor

Gorazd Łukasz

• AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Kraków

• https://orcid.org/0000-0002-2579-640X

Bibliografia

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• 9. Ł. Gorazd; Experimental Determination of a Reflective Muffler Scattering Matrix for Single-Mode Excitation; Archives of Acoustics 2021, 46(4), 667-675. DOI: 10.24425/aoa.2021.139643
• 10. A. Snakowska, J. Jurkiewicz; Generalized method of describing acoustic duct-like system as a multi-port; Proceedings of the 23rd International Congress on Acoustics and 4th EAA Euroregio, Aachen Germany, 9-13 September 2019; Deutsche Gesellschaft für Akustik: Berlin, Germany, 2019, 5276-5283.
• 11. A. Snakowska, Ł. Gorazd, J. Jurkiewicz; Evaluation of the transmission and the scattering matrix applicability to the mufflers analysis; Vibrations in Physical Systems 2019, 30(1), 2019102.
• 12. A. Snakowska, K. Kolber, Ł. Gorazd, J. Jurkiewicz; Derivation of an acoustic two-port scattering matrix for a multimode wave applying the single-mode generator; Proceedings of 2018 Joint Conference - Acoustics, Ustka, Poland, September 11-14, 2018; IEEE: Piscataway, USA, 2018. DOI: 10.1109/ACOUSTICS.2018.8502405
• 13. A. Snakowska, Ł. Gorazd, J. Jurkiewicz, K. Kolber; Generation of a single cylindrical duct mode using a mode synthesizer; Applied Acoustics 2016, 114, 56-70. DOI: 10.1016/j.apacoust.2016.07.007

Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).