Determination of sound insulation properties of homogeneous baffles using Finite Element Method

• Autorzy: Majkut Leszek , Kosała Krzysztof

Identyfikatory

DOI

10.21008/j.0860-6897.2023.2.22

• Języki publikacji: EN

Abstrakty

EN

The basic parameter of materials used in constructional solutions of anti-noise protection, is sound insulation, which can be determined in laboratory conditions and also using theoretical models. The use of numerical methods in the form of the Finite Element Method to calculate the mechanical impedance of a baffle and then the sound insulation of homogeneous baffles was presented in the article. A 1 mm thick steel plate with a square, rectangular and round shape was analyzed. The boundary conditions for simply supported and clamped plate were taken into account in the numerical calculations. The results of the calculations were compared to both the commonly used the mass law and to the experimental tests. These analyzes will be the starting point for analyzes of multi-layer baffles, for which it is no longer possible to apply the mass law.

Słowa kluczowe

EN

sound insulation; sound transmission loss; finite element method; homogeneous baffles

PL

izolacyjność akustyczna; strata transmisji dźwięku; metoda elementów skończonych; przegrody jednorodne

• Wydawca: Poznan University of Technology. Institute of Applied Mechanics
• Czasopismo: Vibrations in Physical Systems
• Rocznik: 2023
• Tom: Vol. 34, nr 2
• Strony: art. no. 2023222
• Opis fizyczny: Bibliogr. 11 poz., wykr.

Twórcy

autor

Majkut Leszek

• AGH University of Krakow

• https://orcid.org/0000-0003-1341-8011

autor

Kosała Krzysztof

• AGH University of Krakow

• https://orcid.org/0000-0002-8463-6959

Bibliografia

• 1. I.L. Ver, L.L. Beranek; Noise and vibration control engineering - principles and applications; John Wiley & Sons, Inc, Hoboken, New Jersey, 2006
• 2. J. Sikora; Rubber layers in solutions of vibroacoustic protections (in Polish); AGH, Kraków, 2011
• 3. K. Kosała, L. Majkut, R. Olszewski; Experimental study and prediction of insertion loss of acoustical enclosures; Vibrations in Physical Systems, 2020, 31(2), 2020209
• 4. K. Kosała, L. Majkut, R. Olszewski, A. Flach; Laboratory test of the prototype stand to determine the acoustic properties of materials used in noise protection (in Polish); Technologie XXI wieku - aktualne problemy i nowe wyzwania, 2020, T.1, 7-20
• 5. J. Jung, J. Kook, S. Goo, S. Wang; Sound transmission analysis of plate structures using the finite element method and elementary radiator approach with radiator error index; Advances in Engineering Software, 2017, 112, 1-15
• 6. S. Kurra; Comparison of the models predicting sound insulation values of multilayered building elements; Applied Acoustics, 2012, 73, 6-7
• 7. E. Reynders, R. Langley, A. Dijckmans, G. Vermeir; A hybrid finite element - statistical energy analysis approach to robust sound transmission modeling; Journal of Sound and Vibration, 2014, 333(19), 4621-4636
• 8. K. Kosała; Calculation models for analysing the sound insulating properties of homogeneous single baffles used in vibroacoustic protection; Applied Acoustics, 2019, 146, 108-117
• 9. K. Kosała, L. Majkut, R. Olszewski; Application of Statistical Energy Analysis Method for modelling sound insulation of baffles (in Polish); Autobusy: technika, eksploatacja, systemy transportowe, 2018, 12, 106-109
• 10. D.A. Bies, C.H. Hansen; Engineering noise control, theory and practice, 4th Ed.; Spon Press, London and New York, 2009
• 11. F. Fahy; Foundations of Engineering Acoustics, Academic Press, San Diego, 2003

Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2024).