Engineering Technologies and Systems - 06. Skvortsov AN, Savelyev AP, Glotov SV. Calculation of acoustic efficiency of portable acoustic screen.

UDK 681.524.001.24

DOI: 10.15507/0236-2910.026.201601.058-069

CALCULATION OF ACOUSTIC EFFICIENCY OF PORTABLE ACOUSTIC SCREEN

Aleksandr Skvortsov (postgraduate student of Life Safety chair, Institute of Mechanics and Energy, Ogarev Mordovia State University (68, Bolshevistskaya St., Saransk, Russia), ORCID: http://orcid. org/0000-0002-2093-1094, This email address is being protected from spambots. You need JavaScript enabled to view it.)

Anatoliy Savelyev (head of Life Safety chair, Institute of Mechanics and Energy, Ogarev Mordovia State University (68, Bolshevistskaya St., Saransk, Russia), Dr.Sci. (Engineering), professor, ORCID: http://orcid.org/0000-0003-0361-0827, This email address is being protected from spambots. You need JavaScript enabled to view it.)

Sergey Glotov (professor of Life Safety chair, Institute of Mechanics and Energy, Ogarev Mordovia State University (68, Bolshevistskaya St., Saransk, Russia), Dr.Sci. (Engineering), professor, ORCID: http://orcid.org/0000-0002-6965-3953, This email address is being protected from spambots. You need JavaScript enabled to view it.)

The research of influence of life environment adverse factors on physical development and health of population is an actual problem of ecology. The aspects of the most actual problems of the modern world, namely environmental industrial noise pollution are considered in the article. Industrial facilities everywhere have noisy equipment. Noise is a significant factors of negative influenceon people and environment. Combined effects of noise and of other physical pollutions on people may cause amplification of their negative impact. If the noise pollution level from the object in a residential area exceeds the permissible levels (MPL), noise protection measures can be initiated. Today, the most common design decisions for noise protection are sound absorbing construction, noise screens and barriers, acousting housings, soundproff cabins. Many of them are popular, others are less known. The article deals with one of the most wide spread means of noise protection – a portable acoustic screen. The aim of the research is to determine the efficiency of portable acoustic screens. It is shown that the installation of such structures can reduce the average value of the sound level. The authors analyzed acoustic screens as device to reduce noise pollution. The authors offer a potable acoustic screen differing from the used easyness, mobility, minimum price and good sound protective properties. Effectiveness, a sound absorption coefficient and sound conductivity coefficient of a portable acoustic screen are evaluated. The descriptions of the algorithm calculations and the combination of technical solutions have practical originality. The results of the research demonstrate the advantages of the proposed solutions for reducing noise levels in the agro-industrial complex.

Keywords: noise, sound baffle, labor protection, noise pollution, equipment, design

For citation: Skvortsov AN, Savelyev AP, Glotov SV. Calculation of acoustic efficiency of portable acoustic screen. Vestnik Mordovskogo universiteta = Mordovia University Bulletin. 2016; 1(26):58-69. doi: 10.15507/0236-2910.026.201601.058-069

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