Open AccessEffective sound-absorbing material for transport technological machines of railway transport
Author(s) -
Irina Popova,
Ludmila Leonteva,
Igor Danilov
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/675/1/012045
Subject(s) - cladding (metalworking) , soundproofing , casing , mineral wool , engineering , noise (video) , mechanical engineering , acoustics , forensic engineering , computer science , civil engineering , materials science , composite material , physics , image (mathematics) , artificial intelligence
The article discusses the types and features of the operation of transport technological machines of the railways of the Russian Federation on the example of the most frequently used track machines, and presents methods for noise reducing on the railways of the Russian Federation. The most effective method to reduce the noise arising during the operation of track machines is identified - this is the installation of a steel soundproofing hood (casing) over the electric motor. The calculation of the effectiveness of sound-absorbing materials used for cladding steel bonnet is given. According to the results of the calculation, the material «asbestos felt» turned out to be the most effective, but the other materials under consideration, and in particular, «glass wool», «mineral wool» and «construction felt», turned out to be also applicable to the lining of the steel bonnet, since the calculations revealed the applicable level of sound absorption, which is less than a decibel in terms of noise reduction to the material «asbestos felt».