Vestnik MGSU 1/2013
  • Antonov Aleksandr Ivanovich - Tambov State Technical University (TGTU) Candidate of Technical Sciences, Associate Professor, Department of Architecture and Construction of Buildings, Tambov State Technical University (TGTU), 112 E Michurinskaya street, Tambov, 392032, Russian Federation; +7 (4752) 63-03-82, 63-04-39; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Solomatin Evgeniy Olegovich - Tambov State Technical University (TSTU) + 7 (4752) 63-09-20; + 7 (4752) 63-03-72, Tambov State Technical University (TSTU), Building E, 112 Michurinskaya St., Tambov, 392032, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Tseva Anna Viktorovna - Moscow State University of Civil Engineering (MGSU) assistant lecturer, Department of Architectural and Structural Design, Mytishchi Branch, Moscow State University of Civil Engineering (MGSU), 50 Olimpiyskiy prospekt, Mytishchi, Moscow Region, 141006, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 19-25

Long rooms often make substantial contributions into the noise energy distribution inside buildings. Application of methods of theoretical geometry to the analysis of sound energy distribution patterns in hallway-like premises can cause considerable errors in the implementation of noise protection actions.The method of noise analysis based on statistical principles is proposed in the article. It originates from one-dimensional quasi-diffusive representation of a sound field in long rooms. Interrelation between the stream and the density gradient of reflected sonic energy, as well as consideration of the energy balance in respect of elements of extended room make it possible to design a mathematical model of a stationary noise field in the form of a differential equation that has boundary conditions. The authors have developed a numerical model of a differential equation based on the statistical energy approach using the Zeydel method of simple iterations, and a software programme designated for the analysis of noise fields of long rooms. The Zeydel method demonstrates its high efficiency as it has proven fast convergence of results and takes up a small amount of computer memory because of the tape-like shape of matrix coefficients of the system equations. Comparison of analytical and experimental data has demonstrated high precision of calculations made for rooms that have various acoustic and spacelanning parameters. The method can be used to design sound proofing actions inside premises of civil and industrial buildings.

DOI: 10.22227/1997-0935.2013.1.19-25

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