THE ANALYSIS OF CHOOSEN ACOUSTIC DESCRIPTORS OF SANDWICH ABSORBERS ON THE ALUMINUM FOAM BASE
In spite of existing European and national legislative aimed at noise abatement, public interest and concern about noise are high. The EU Directive 70/157/EEC for setting and controlling environmental noise is aimed at the creating less noisy and more pleasant environment for European residents with...
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| Published in: | Annals of Faculty Engineering Hunedoara Vol. 13; no. 4; p. 189 |
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| Main Authors: | , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Hunedoara
Faculty of Engineering Hunedoara
01-11-2015
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | In spite of existing European and national legislative aimed at noise abatement, public interest and concern about noise are high. The EU Directive 70/157/EEC for setting and controlling environmental noise is aimed at the creating less noisy and more pleasant environment for European residents within " Sustainable Development in Europe." The authors are presenting a methodology for measuring of selected acoustic descriptors, sound absorption coefficient and sound transmission loss) for acoustic materials, which are currently in process of development. Authors present the results of their scientific - research works, joined with the research of acoustic properties of new material - aluminum foam. The emphasis is layed on the research of sandwich construction, created on the base of aluminum foam material. The aluminum foam becomes known as new suitable acoustic material used for many areas of industrial practice. In the contribution is presented the methodology of acoustic descriptors measuring of new developed acoustic materials. The methodology was verified on the aluminum foam material, which application possibilities are the subjects of the intensive research of research teams in the world. |
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| ISSN: | 1584-2665 2601-2332 |