Selection of Sound Absorp- tion Coefficients of Acoustically Effective Materials in Calculating Time-Variable Noise in a Room
https://doi.org/10.31675/1607-1859-2026-28-1-169-180
Abstract
Reverberation is one of the main processes that determines noise in industrial premises with pulsed sound sources. Its study uses data on the sound absorption coefficients of fences, including acoustical lining used to reduce the pulse noise. It is known that the sound absorption coefficient of effective acoustical lining can vary significantly within the octave frequency bands. Therefore, it is recommended to use arithmetic mean octave sound absorption coefficients according to regulatory documents, otherwise, it can lead to significant errors in the assessment of reverberation processes occurring in rooms.
Purpose: Using computer modeling of reverberation processes in rooms, to measure the sound absorption coefficient of effective sound-absorbing materials, ensuring the calculation accuracy in octave frequency bands of time-variable noise in a room.
Research findings: Based on the proposed computer technique, it is found that in the case of significant changes in the sound absorption coefficient in the octave frequency band, the attenuation of the octave sound level is determined by the rate of sound decrease in the third-octave frequency band with a minimum average sound absorption coefficient. This coefficient should be taken into account when studying reverberation processes in rooms with acoustical lining.
About the Authors
A. I. Antonov
Research Institute of Building Physics of the Russian Academy of Architecture and Building Sciences
Russian Federation
Russian Federation
Aleksandr I. Antonov, DSc, A/Professor
21, Locomotive passage, 127238, Moscow
V. I. Ledenev
Research Institute of Building Physics of the Russian Academy of Architecture and Building Sciences; Tambov State Technical University
Russian Federation
Russian Federation
Vladimir I. Ledenev, DSc, Professor
112, Michurinskaya Str., 392032, Tambov
I. V. Matveeva
Tambov State Technical University
Russian Federation
Russian Federation
Irina V. Matveeva, PhD, A/Professor
112, Michurinskaya Str., 392032, Tambov
References
1. Suvorov G.A., Lixniczkij A.M. Pulse Noise and its Effect on the Human Body. Leningrad: Medicina, 1975. 207 s. (In Russian)
2. Antonov A.I., Ledenev V.I., Matveeva I.V., Shubin I.L. Methodology for Calculating Non-Normalized Pulse Noise Indicators used in Noise Assessment in Industrial Buildings. Privolzhskii nauchnyi zhurnal. 2024; 2 (70): 9–19. (In Russian)
3. Shubin I.L., Antonov A.I., Ledenev V.I., Matveeva I.V. Calculations of Non-Normalized Parameters of Pulse Noise when Choosing Means to Reduce it in Industrial Buildings. Byulleten stroitel`noi tekhniki. 2024; 5 (1077): 20–23. (In Russian)
4. Antonov A.I., Ledenev V.I., Matveeva I.V., Solomatin E.O. Estimation of Spatiotemporal Changes in Pulse Noise in Noise Protection of Industrial Buildings. Privolzhskii nauchnyi zhurnal. 2021; 4 (60): 9–16. (In Russian)
5. Man’kovskii V.S. Acoustics of Studios and Halls for Sound Reproduction. Moscow: Iskusstvo. 1966. 375 p. (In Russian)
6. Antonov A.I., Ledenev V.I., Matveeva I.V., Shubin I.L. Calculation of Noise Protection of Industrial Buildings. Moscow, Berlin: Direkt-Media, 2020. 274 p. (In Russian)
7. Antonov A., Ledenev V., Shubin I. Numerical Method for Impulse Noise Calculation with Diffuse Sound Reflection. IOP Conference Series: Materials Science and Engineering. 2021; 1079. DOI: 10.1088/1757-899X/1079/4/042044
8. Gerlach R., Meliert V. Der Nachhallvorgang als Markoffsche Kette. Theorie und erste experimentale berprufung. Acustica. 1975; 32 (4): 217–227.
9. Golovko A.V., Ledenev V.I., Ostrovskaya A.A. Evaluation of the reverberation process in a room based on homogeneous discrete Markov circuits. In: Proc. 7th Sci. Conf. ‘Stable Regional Development: Architecture, Construction, Transport’. Tambov: Chesnokova A.V. 2021. Pp. 191–196. (In Russian)
10. Kuttruff H., Strassen T. Zur Abhandigkeit der Raumnachhalls von der Wand diffusitat und von Raumform. Acustica. 1980; 45 (4): 246–255.
11. Gusev V.P., Zhogoleva O.A., Ledenev V.I., Sidorina A.V. Acoustic and Dynamic Characteristics of Elastomeric Building Materials based on NBR Rubber. Stroitel’nye materialy. 2019; (6): 56–61. DOI: 10.31659/0585-430X-2019-771-6-56-61 (In Russian)
Review
For citations:
Antonov A.I., Ledenev V.I., Matveeva I.V. Selection of Sound Absorp- tion Coefficients of Acoustically Effective Materials in Calculating Time-Variable Noise in a Room. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture. 2026;28(1):169-180. (In Russ.) https://doi.org/10.31675/1607-1859-2026-28-1-169-180
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