RT Journal Article
SR Electronic
A1 Badida, Miroslav
A1 Bartko, Ladislav
A1 Lumnitzer, Ervin
A1 Szabó, Róbert
T1 Research of Selected Acoustic Descriptors of Two-Layer Sandwich Absorbers
JF Acta Mechanica Slovaca
YR 2011
VO 15
IS 3
SP 22
OP 29
DO 10.21496/ams.2011.024
UL https://www.actamechanica.sk/artkey/ams-201103-0003.php
AB In spite of existing European and national legislation aimed at noise abatement, public interest and concern about noise are high. The EU Directive 70/157/EEC [13] for setting and controlling environmental noise is aimed at creating less noisy and more pleasant environment for European residents within "Sustainable Development in Europe". The authors are presenting a methodology for measuring selected acoustic descriptors (sound absorption coefficient and sound transmission loss) for acoustic materials, which are currently in process of development. Emphasis is put on sandwich structures of absorbers. Verification results of the proposed methodology are presented.