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Bartko L., Konkoly T., Badida M. Research of acoustic descriptors of sandwich absorbers

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УДК 501:51-7

BARTKO Ladislav, Ing., PhD.1

KONKOLY Tomáš, Ing.2

BADIDA Miroslav, Dr.h.c. prof. Ing., PhD.3

1,3Technical Univerzity in Košice, Faculty of Mechanical Engineering, Department of Process and Environmental Engineering, Park Komenského 5, 042 00 Košice, Slovak Republic

2MagnetiMarelli Slovakia, s.r.o., Industrial Park, 044 58 Kechnec, Slovak Republic

 

RESEARCH OF ACOUSTIC DESCRIPTORS OF SANDWICH ABSORBERS

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 [11] 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.

Keywords: environmental noise, transportation, noise wall, sound absorption coefficient, sound transmission loss, absorber, sandwich absorber.

Read 1197 times Last modified on Monday, 07 November 2016 21:02
 

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