| Issue |
MATEC Web Conf.
Volume 86, 2016
5th International Scientific Conference “Integration, Partnership and Innovation in Construction Science and Education”
|
|
|---|---|---|
| Article Number | 04001 | |
| Number of page(s) | 7 | |
| Section | 4 Building materials and Technologies | |
| DOI | https://doi.org/10.1051/matecconf/20168604001 | |
| Published online | 28 November 2016 | |
The simulation calculation of acoustics energy transfer through the material structure
1 University of Žilina, Faculty of Mechanical Engineering, Univerzitná 8215/1, 010 26, Žilina, Slovak Republic
2 University of Žilina, Faculty of Civil Engineering, Univerzitná 8215/1, 010 26, Žilina, Slovak Republic
* Corresponding author: alzbeta.pultznerova@fstav.uniza.sk
The paper deals with the modification of the rail passenger coach floor design aimed at improvement of sound reduction index. Refurbishing was performed by using a new acoustic material with a filamentary microstructure. The materials proposed in research were compared by simulation calculation of acoustic energy transfer trough porous microstructure of filamentary material, and the effect of material porosity on sound reduction index and sound absorption coefficient were observed. This proposed filamentary material can be used in the railway bed structure, too. High degree of noise absorbing, resistance to climate conditions, low specific mass, enable to choose a system of low anti-noise barriers having similar properties as standard high anti-noise walls..
© The Authors, published by EDP Sciences, 2016
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