Numerical method for calculating noise in flat rooms with partitions of incomplete height

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Abstract

In office premises, it is customary to place operators’ seats in cabins made of partitions of incomplete height. The device of the cabins ensures the confidentiality of communication between the client and the operator and improves speech intelligibility. At the same time, the presence of partitions of this type significantly affects the distribution of sound energy compared to its distribution in a room without partitions. In addition to the fact that partitions shield direct sound coming from neighboring workplaces, they also significantly affect the formation and distribution of reflected sound energy in the general space of the office space. For this reason, at the design stage of office premises with workplaces separated by partitions of incomplete height, it is necessary to make noise calculations taking into account the presence of partitions in them. For this purpose, the article proposes a calculation method that makes it possible to take into account the redistribution of reflected sound energy that occurs during the installation of partitions. The method has been tested experimentally and can be used in office premises belonging to flat-proportioned rooms.

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About the authors

A. I. Antonov

Scientific-Research Institute of Building Physics of RAACS; Tambov State Technical University

Author for correspondence.
Email: aiant58@yandex.ru

Doctor of Sciences (Engineering)

Russian Federation, 21, Lokomotivniy Driveway, Moscow, 127238; 106, Sovetskaya st., Tambov, 392000

V. P. Gusev

Scientific-Research Institute of Building Physics of RAACS

Email: niisf@mail.ru

Doctor of Sciences (Engineering)

Russian Federation, 21, Lokomotivniy Driveway, Moscow, 127238

O. A. Zhogoleva

Scientific-Research Institute of Building Physics of RAACS; Tambov State Technical University

Email: zhogoleva.olga@rambler.ru

Candidate of Sciences (Engineering)

Russian Federation, 21, Lokomotivniy Driveway, Moscow, 127238; 106, Sovetskaya st., Tambov, 392000

V. I. Ledenev

Scientific-Research Institute of Building Physics of RAACS; Tambov State Technical University

Email: ledvi46@yandex.ru

Doctor of Sciences (Engineering)

Russian Federation, 21, Lokomotivniy Driveway, Moscow, 127238; 106, Sovetskaya st., Tambov, 392000

References

  1. Yarovaya T.S., Antonov A.I., Matveyeva I.V., Solomatin E.O. Assessment of the effect of incomplete height partitions on the acoustic parameters of the room. Vestnik of the Tomsk State National University of Architecture and Civil Engineering. 2023. Vol. 25. No. 1, pp. 122–133. (In Russian). DOI: https://doi.org/10.31675/1607-1859-2023-25-1-122-133
  2. Gusev V.P., Antonov A.I., Zhogoleva O.A., Ledenev V.I. Noise calculations in the design of noise protection in industrial premises with partitions of incomplete height. Izvestiya of higher educational institutions.Textile technology. 2017. No. 2 (368), pp. 260–267. (In Russian).
  3. Ledenev V.I. Statisticheskie energeticheskie metody rascheta shumovykh polei pri proektirovanii proizvodstvennykh zdanii [Statistical energy methods for calculating noise fields in the design of industrial buildings]. Tambov: Tambovskiy gosudarstvennyy tekhnicheskiy universitet, 2000. 156 p.
  4. Antonov A.I., Yarovaya T.S. Dependence of the average free path of sound on the position of the source in a room with partitions of incomplete height. Modern science: theory, methodology, practice. Materials of the 2nd All-Russian (national) scientific and practical conference. 2020, pp. 75–78. (In Russian).
  5. Antonov A.I., Ledenev V.I., Matveyeva I.V., Shubin I.L. Raschety shuma pri proektirovanii shumozashchity v proizvodstvennykh zdaniyakh [Noise calculations in the design of noise protection in industrial buildings]. Moskva-Berlin: Direkt-Media. 2020. 274 p. (In Russian).
  6. Giyasov B.I., Ledenyov V.I., Matveeva I.V. Method for noise calculation under specular and diffuse reflection of sound. Magazine of Civil Engineering. 2018. No. 1 (77), pp. 13–22. (In Russian).
  7. Tsukernikov I., Shubin I., Antonov A., Ledenev V., Nevenchannaya T. Noise calculation method for industrial premises with bulky equipment at mirror-diffuse sound reflection. Proceedings of the 3rd International Conference on Dynamics and Vibroacoustics of Machines (DVM 2016). June 29–July 01, 2016 Samara, Russia. 2017. С. 218–225.
  8. Antonov A.I., Ledenev V.I., Nevenchannaya T.O., Tsukernikov I.E., Shubin I.L. Coupling coefficient of flux density and density gradient of reflected sound energy in quasi-diffuse sound fields // Journal of Theoretical and Computational Acoustics. 2019. Vol. 27. No. 2. 1850053.
  9. Antonov A., Ledenev V., Shubin I., Tsukernikov I., Nevenchannaya T. Coupling coefficient for flux density and density gradient of reflected sound energy in quasidiffuse sound fields. 13th International Conference on Theoretical and Computational Acoustics, ICTCA 2017. 244 p. https://doi.org/10.1142/S2591728518500536
  10. Antonov A.I., Ledenev V.I., Matveyeva I.V., Shubin I.L. Raschety shuma v grazhdanskikh i promyshlennykh zdaniyakh pri zerkal’no-diffuznom otrazhenii zvuka ot ograzhdenii [Noise calculations in civil and industrial buildings with mirror-diffuse reflection of sound from fences]. Moskva: Direktmedia Pablishing. 2022. 192 p.
  11. Shubin I.L., Aistov V.A., Porozchenko M.A. Sound insulation of enclosing structures in high-rise buildings. Requirements and methods of support. Stroitel’nye Materialy [Construction Materials]. 2019. No. 3, pp. 33–43. (In Russian). DOI: https://doi.org/10.31659/0585-430X-2019-768-3-33-43
  12. Antonov А.I., Gusev V.P., Ledenev V.I., Matveeva I.V., Porozhenko M.A. Numerical methods for calculating noise in disproportionate rooms of civil buildings. Zhilishchnoe Stroitel’stvo [Housing Construction]. 2023. No. 6, pp. 18–22. (In Russian). DOI: https://doi.org/10.31659/0044-4472-2023-6-18-22
  13. Certificate of state registration of the computer program No. 2019611868 Russian Federation. A comprehensive program for the calculation of sound fields in rooms and the design of noise protection equipment / Antonov A.I., Zhogoleva O.A., Ledenev V.I., Yarovaya T.S., Matveeva I.V. Declared 22.01.2019. Publ. 05.02.2019.

Supplementary files

Supplementary Files
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1. JATS XML
2. Fig. 1. Scheme for calculating energy flows between i-m and j-m elementary parallelepipeds in the absence (a) and presence (b) of a partition of incomplete height

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3. Fig. 2. A diagram of a room with partitions of incomplete height indicating the position of the design points (Ti, Bi) and the noise source (ISH)

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4. Fig. 3. Graphs of measured and calculated sound pressure levels at points T1–T16: 1 – experiment; 2 – calculation

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5. Fig. 4. Graphs of measured and calculated sound pressure levels at points B1–B16: 1 – experiment; 2 – calculation

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