Annotation:
Microperforated metal panels can be efficiently applied to reduce noise in the industry, specifically at explosive, fire-hazardous, and chemically hazardous production facilities. The study presents the results of an experimental assessment of the reverberation coefficient of sound absorption for a microperforated aluminum panel in diffuse sound field conditions. The effects of sound level reduction (to 10.6 dBA) of a stationary power unit when using molded microperforated panels in thermally exposed areas of internal combustion engine and exhaust systems are demonstrated.
References:
1. Кочетов О.С. Звукопоглощающие конструкции для снижения шума на рабочих местах производственных помещений // Безопасность труда в промышленности. 2010. № 11. С. 46–50.
Kochetov O.S. Sound-Proof Structures for Noise Reduction at the Working Places of the Production Areas. Bezopasnost truda v promyshlennosti = Occupational Safety in Industry. 2010. № 11. pp. 46–50. (In Russ.).
2. Cox T.J., D'Antonio P. Acoustic Absorbers and Diffusers. Theory, design and application. Second edition. Taylor & Francis. 2009. 476 p.
3. Fuchs H.V. Schallabsorber und Schalldämpfer. Innovative akustische Konzepte und Bauteile mit praktischen Anwendungen in konkreten Beispielen. Berlin, Heidelberg: Springer-Verlag, 2007. 546 p.
4. Vasile O., Bugaru M. Experimental vs. Numerical Computation of Acoustic Analyses on the Thickness Influence of the Multilayer Panel. Computation. 2023. Vol 11. Iss. 1. DOI: 10.3390/computation11010001
5. Howard C.Q., Cazzolato B.S. Acoustic Analyses Using Matlab and Ansys. Taylor & Francis. 2015. 708 p.
6. Herrin D.W., Liu W., Hua X., Liu J. A Guide to the Application of Microperforated Panel Absorbers. Sound & Vibration. 2017. pp. 12–18.
7. Tayong R.B. On the Use of Micro-Perforated Panels for Sound Absorption. Acoustical Engineering — The Intricate World of Sound Technology. Chapter, 2024. pp. 1–19. DOI: 10.5772/intechopen.1008283
8. Кезик В.И. Акустические характеристики резонаторов Гельмгольца с перфорированными микроотверстиями панелями, используемыми в качестве горла // Noise Theory and Practice. 2021. Т. 7. № 2. С. 130–138.
Kezik V.I. Acoustic characteristics of Helmholtz resonators with panels perforated with micro-holes used as the neck. Noise Theory and Practice. 2021. Vol. 7. № 2. pp. 130–138. (In Russ.).
9. Berchtenbreiter B., Renz A., Becker S. The potential of additively manufactured porous absorbers in the design of multi-layer microperforated absorbers. Acta Acustica. 2024. Vol. 8. pp. 1–11. DOI: 10.1051/aacus/2024039
10. Floss S., Czwielong F., Kaltenbacher M., Becker S. Design of an in-duct micro-perforated panel absorber for axial fan noise attenuation. Acta Acustica. 2021. Vol. 5. pp. 1–16. DOI: 10.1051/aacus/2021015
11. Laly Z., Atalla N. Sound attenuation performance at high sound pressure level of micro-perforated panel sound absorber with embedded resistive screen. Proceedings of 186th Meeting of the Acoustical Society of America. Ottawa. 2024. Vol. 54. Iss. 1. pp. 1–11. DOI: 10.1121/2.0001929
12. Соболев А.Ф. Полуэмпирическая теория однослойных сотовых звукопоглощающих конструкций с лицевой перфорированной панелью // Акустический журнал. 2007. Т. 53. № 6. С. 861–872.
Sobolev A.F. A Semiempirical Theory of a One-Layer Cellular Sound-Absorbing Lining with a Perforated Face Panel. Akusticheskiy zhurnal = Acoustic journal. 2007. Vol. 53. № 6. pp. 861–872. (In Russ.).
13. J2883_202003 — Laboratory Measurement of Random Incidence Sound Absorption Tests Using a Small Reverberation Room. SAE International, 2020. 21 p. DOI: 10.4271/J2883_202003
Kochetov O.S. Sound-Proof Structures for Noise Reduction at the Working Places of the Production Areas. Bezopasnost truda v promyshlennosti = Occupational Safety in Industry. 2010. № 11. pp. 46–50. (In Russ.).
2. Cox T.J., D'Antonio P. Acoustic Absorbers and Diffusers. Theory, design and application. Second edition. Taylor & Francis. 2009. 476 p.
3. Fuchs H.V. Schallabsorber und Schalldämpfer. Innovative akustische Konzepte und Bauteile mit praktischen Anwendungen in konkreten Beispielen. Berlin, Heidelberg: Springer-Verlag, 2007. 546 p.
4. Vasile O., Bugaru M. Experimental vs. Numerical Computation of Acoustic Analyses on the Thickness Influence of the Multilayer Panel. Computation. 2023. Vol 11. Iss. 1. DOI: 10.3390/computation11010001
5. Howard C.Q., Cazzolato B.S. Acoustic Analyses Using Matlab and Ansys. Taylor & Francis. 2015. 708 p.
6. Herrin D.W., Liu W., Hua X., Liu J. A Guide to the Application of Microperforated Panel Absorbers. Sound & Vibration. 2017. pp. 12–18.
7. Tayong R.B. On the Use of Micro-Perforated Panels for Sound Absorption. Acoustical Engineering — The Intricate World of Sound Technology. Chapter, 2024. pp. 1–19. DOI: 10.5772/intechopen.1008283
8. Кезик В.И. Акустические характеристики резонаторов Гельмгольца с перфорированными микроотверстиями панелями, используемыми в качестве горла // Noise Theory and Practice. 2021. Т. 7. № 2. С. 130–138.
Kezik V.I. Acoustic characteristics of Helmholtz resonators with panels perforated with micro-holes used as the neck. Noise Theory and Practice. 2021. Vol. 7. № 2. pp. 130–138. (In Russ.).
9. Berchtenbreiter B., Renz A., Becker S. The potential of additively manufactured porous absorbers in the design of multi-layer microperforated absorbers. Acta Acustica. 2024. Vol. 8. pp. 1–11. DOI: 10.1051/aacus/2024039
10. Floss S., Czwielong F., Kaltenbacher M., Becker S. Design of an in-duct micro-perforated panel absorber for axial fan noise attenuation. Acta Acustica. 2021. Vol. 5. pp. 1–16. DOI: 10.1051/aacus/2021015
11. Laly Z., Atalla N. Sound attenuation performance at high sound pressure level of micro-perforated panel sound absorber with embedded resistive screen. Proceedings of 186th Meeting of the Acoustical Society of America. Ottawa. 2024. Vol. 54. Iss. 1. pp. 1–11. DOI: 10.1121/2.0001929
12. Соболев А.Ф. Полуэмпирическая теория однослойных сотовых звукопоглощающих конструкций с лицевой перфорированной панелью // Акустический журнал. 2007. Т. 53. № 6. С. 861–872.
Sobolev A.F. A Semiempirical Theory of a One-Layer Cellular Sound-Absorbing Lining with a Perforated Face Panel. Akusticheskiy zhurnal = Acoustic journal. 2007. Vol. 53. № 6. pp. 861–872. (In Russ.).
13. J2883_202003 — Laboratory Measurement of Random Incidence Sound Absorption Tests Using a Small Reverberation Room. SAE International, 2020. 21 p. DOI: 10.4271/J2883_202003