RT Journal Article
SR Electronic
A1 Zvolensky, Peter
A1 Grencik, Juraj
A1 Kasiar, Lubomir
A1 Volna, Peter
A1 Licciardello, Riccardo
T1 Modelling and Experimental Analysis of Noise Transmission through Wall of a Railway Vehicle
JF Communications - Scientific Letters of the University of Zilina
YR 2017
VO 19
IS 11
SP 60
OP 67
DO 10.26552/com.C.2017.2A.60-67
UL https://komunikacie.uniza.sk/artkey/csl-201711-0010.php
AB The paper presents results of a grant research project dealing with acoustic properties of the walls and floor of a railway passenger coach investigated by means of the experimental analysis of noise produced during train runs and corresponding simulations. In the research, conditions and theoretical approaches for possible reconstructions of walls and floor of the railway passenger coach using new fibrous-microstructure acoustic materials were defined, with the aim of increasing the sound reduction index. The properties of the proposed materials were compared in terms of the acoustic energy transfer through the porous microstructure calculated by means of simulations. The final acoustic effects of different solutions for the incorporation of the materials in the floor structure and in the complete body of the rail passenger coach were evaluated. In this paper the effects on interior noise of the introduction of a new material for floor and wall are presented.