THICKNESS INFLUENCE ON ABSORBING PROPERTIES OF STRATIFIED COMPOSITE MATERIALS

Plates known as sound absorbing materials: textiles recovered fabrics plus polyethylene are made layered composite material intended to be used to encapsulate industrial engines, as sources of noise in the production departments. Influence of thickness sound-absorbing material can be supported by t...

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Main Authors:	IULIANA IAȘNICU (STAMATE), OVIDIU VASILE, RADU IATAN
Format:	article
Language:	EN
Published:	Alma Mater Publishing House "Vasile Alecsandri" University of Bacau 2015
Subjects:	thickness polyethylene absorption plate stratified composite materials Technology T Engineering (General). Civil engineering (General) TA1-2040
Online Access:	https://doaj.org/article/3065bec5e4be48aab90f1baad11d42a8
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spelling	oai:doaj.org-article:3065bec5e4be48aab90f1baad11d42a82021-12-02T19:52:50ZTHICKNESS INFLUENCE ON ABSORBING PROPERTIES OF STRATIFIED COMPOSITE MATERIALS10.29081/jesr.v21i4.1302068-75592344-4932https://doaj.org/article/3065bec5e4be48aab90f1baad11d42a82015-12-01T00:00:00Zhttp://www.jesr.ub.ro/1/article/view/130https://doaj.org/toc/2068-7559https://doaj.org/toc/2344-4932 Plates known as sound absorbing materials: textiles recovered fabrics plus polyethylene are made layered composite material intended to be used to encapsulate industrial engines, as sources of noise in the production departments. Influence of thickness sound-absorbing material can be supported by the values obtained for the absorption coefficient, but it can be studied as a study case in the anechoic chamber, where the sound pressure level is measured with a sound level meter. Cases captured: a free engine; the engine placed in a metallic cube and motor inserted; metal cube that was doubled separately with one material and then with the composite material proposed. For each situation are eight determinations on the perimeter of a circle with a radius of one meter from the source of the noise. Plot a graph of experimental results that support the idea: greater thickness of the layer of material will cause a better absorption of noise. IULIANA IAȘNICU (STAMATE)OVIDIU VASILERADU IATANAlma Mater Publishing House "Vasile Alecsandri" University of Bacauarticlethicknesspolyethyleneabsorptionplatestratified composite materialsTechnologyTEngineering (General). Civil engineering (General)TA1-2040ENJournal of Engineering Studies and Research, Vol 21, Iss 4 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	thickness polyethylene absorption plate stratified composite materials Technology T Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	thickness polyethylene absorption plate stratified composite materials Technology T Engineering (General). Civil engineering (General) TA1-2040 IULIANA IAȘNICU (STAMATE) OVIDIU VASILE RADU IATAN THICKNESS INFLUENCE ON ABSORBING PROPERTIES OF STRATIFIED COMPOSITE MATERIALS
description	Plates known as sound absorbing materials: textiles recovered fabrics plus polyethylene are made layered composite material intended to be used to encapsulate industrial engines, as sources of noise in the production departments. Influence of thickness sound-absorbing material can be supported by the values obtained for the absorption coefficient, but it can be studied as a study case in the anechoic chamber, where the sound pressure level is measured with a sound level meter. Cases captured: a free engine; the engine placed in a metallic cube and motor inserted; metal cube that was doubled separately with one material and then with the composite material proposed. For each situation are eight determinations on the perimeter of a circle with a radius of one meter from the source of the noise. Plot a graph of experimental results that support the idea: greater thickness of the layer of material will cause a better absorption of noise.
format	article
author	IULIANA IAȘNICU (STAMATE) OVIDIU VASILE RADU IATAN
author_facet	IULIANA IAȘNICU (STAMATE) OVIDIU VASILE RADU IATAN
author_sort	IULIANA IAȘNICU (STAMATE)
title	THICKNESS INFLUENCE ON ABSORBING PROPERTIES OF STRATIFIED COMPOSITE MATERIALS
title_short	THICKNESS INFLUENCE ON ABSORBING PROPERTIES OF STRATIFIED COMPOSITE MATERIALS
title_full	THICKNESS INFLUENCE ON ABSORBING PROPERTIES OF STRATIFIED COMPOSITE MATERIALS
title_fullStr	THICKNESS INFLUENCE ON ABSORBING PROPERTIES OF STRATIFIED COMPOSITE MATERIALS
title_full_unstemmed	THICKNESS INFLUENCE ON ABSORBING PROPERTIES OF STRATIFIED COMPOSITE MATERIALS
title_sort	thickness influence on absorbing properties of stratified composite materials
publisher	Alma Mater Publishing House "Vasile Alecsandri" University of Bacau
publishDate	2015
url	https://doaj.org/article/3065bec5e4be48aab90f1baad11d42a8
work_keys_str_mv	AT iulianaiasnicustamate thicknessinfluenceonabsorbingpropertiesofstratifiedcompositematerials AT ovidiuvasile thicknessinfluenceonabsorbingpropertiesofstratifiedcompositematerials AT raduiatan thicknessinfluenceonabsorbingpropertiesofstratifiedcompositematerials
_version_	1718375891470385152

THICKNESS INFLUENCE ON ABSORBING PROPERTIES OF STRATIFIED COMPOSITE MATERIALS

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