ACOUSTICAL PROPERTIES OF WOOD IN 2000, 4000 AND 8000 IN HERTZ FERQUENCIES

In this research solid wood properties of sound absorption coefficient in over frequency were investigated. Sound absorption at 2000, 4000 and 8000 in Hertz Frequencies was measured on the influence of effective factors in solid wood. Solid wood variable factors were species (Beech, Poplar and Alder...

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Autores principales:	Amir Nourbakhsh, Abdolrahman Hosseinzadeh, Fardad Golbabaei, Abolfazl Kargarfard
Formato:	article
Lenguaje:	FA
Publicado:	Regional Information Center for Science and Technology (RICeST) 2001
Materias:	beech POPLAR ALDER FREQUENCY SOUND ABSORPTION COEFFICIENT FIBER DIRECTION Forestry SD1-669.5
Acceso en línea:	https://doaj.org/article/6cf9124806fe4b65b4d1ba95cec03867
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spelling	oai:doaj.org-article:6cf9124806fe4b65b4d1ba95cec038672021-12-02T05:06:48ZACOUSTICAL PROPERTIES OF WOOD IN 2000, 4000 AND 8000 IN HERTZ FERQUENCIES1735-09132383-112X10.22092/ijwpr.2018.117505https://doaj.org/article/6cf9124806fe4b65b4d1ba95cec038672001-09-01T00:00:00Zhttp://ijwpr.areeo.ac.ir/article_117505_90125ca7986a75bbce4cd3cb251ceb4d.pdfhttps://doaj.org/toc/1735-0913https://doaj.org/toc/2383-112XIn this research solid wood properties of sound absorption coefficient in over frequency were investigated. Sound absorption at 2000, 4000 and 8000 in Hertz Frequencies was measured on the influence of effective factors in solid wood. Solid wood variable factors were species (Beech, Poplar and Alder), fiber direction (Longitudinal, Radial and Tangential) and Frequencies (2000, 4000 and 8000 in hertz). Data was analyzed using factorial experimental design at completely random blocks and DMRT test. The measurements were taken using the sound absorption with standing waves apparatus type 4002. The results of this research indicate that sound absorption at frequencies 2000, 4000 and 8000 in hertz were in maximum level for poplar wood. Longitudinal direction in solid wood had sound absorption maximum levels. Radial and Tangential direction have less sound absorption than Longitudinal direction respectively. Therefore this investigation showed that sound absorption with increasing frequency of 2000 to 8000 hertz, maximum level was considered.Amir NourbakhshAbdolrahman HosseinzadehFardad GolbabaeiAbolfazl KargarfardRegional Information Center for Science and Technology (RICeST)articlebeechPOPLARALDERFREQUENCYSOUND ABSORPTION COEFFICIENTFIBER DIRECTIONForestrySD1-669.5FAتحقیقات علوم چوب و کاغذ ایران, Vol 6, Iss 14-شماره 272, Pp 27-47 (2001)
institution	DOAJ
collection	DOAJ
language	FA
topic	beech POPLAR ALDER FREQUENCY SOUND ABSORPTION COEFFICIENT FIBER DIRECTION Forestry SD1-669.5
spellingShingle	beech POPLAR ALDER FREQUENCY SOUND ABSORPTION COEFFICIENT FIBER DIRECTION Forestry SD1-669.5 Amir Nourbakhsh Abdolrahman Hosseinzadeh Fardad Golbabaei Abolfazl Kargarfard ACOUSTICAL PROPERTIES OF WOOD IN 2000, 4000 AND 8000 IN HERTZ FERQUENCIES
description	In this research solid wood properties of sound absorption coefficient in over frequency were investigated. Sound absorption at 2000, 4000 and 8000 in Hertz Frequencies was measured on the influence of effective factors in solid wood. Solid wood variable factors were species (Beech, Poplar and Alder), fiber direction (Longitudinal, Radial and Tangential) and Frequencies (2000, 4000 and 8000 in hertz). Data was analyzed using factorial experimental design at completely random blocks and DMRT test. The measurements were taken using the sound absorption with standing waves apparatus type 4002. The results of this research indicate that sound absorption at frequencies 2000, 4000 and 8000 in hertz were in maximum level for poplar wood. Longitudinal direction in solid wood had sound absorption maximum levels. Radial and Tangential direction have less sound absorption than Longitudinal direction respectively. Therefore this investigation showed that sound absorption with increasing frequency of 2000 to 8000 hertz, maximum level was considered.
format	article
author	Amir Nourbakhsh Abdolrahman Hosseinzadeh Fardad Golbabaei Abolfazl Kargarfard
author_facet	Amir Nourbakhsh Abdolrahman Hosseinzadeh Fardad Golbabaei Abolfazl Kargarfard
author_sort	Amir Nourbakhsh
title	ACOUSTICAL PROPERTIES OF WOOD IN 2000, 4000 AND 8000 IN HERTZ FERQUENCIES
title_short	ACOUSTICAL PROPERTIES OF WOOD IN 2000, 4000 AND 8000 IN HERTZ FERQUENCIES
title_full	ACOUSTICAL PROPERTIES OF WOOD IN 2000, 4000 AND 8000 IN HERTZ FERQUENCIES
title_fullStr	ACOUSTICAL PROPERTIES OF WOOD IN 2000, 4000 AND 8000 IN HERTZ FERQUENCIES
title_full_unstemmed	ACOUSTICAL PROPERTIES OF WOOD IN 2000, 4000 AND 8000 IN HERTZ FERQUENCIES
title_sort	acoustical properties of wood in 2000, 4000 and 8000 in hertz ferquencies
publisher	Regional Information Center for Science and Technology (RICeST)
publishDate	2001
url	https://doaj.org/article/6cf9124806fe4b65b4d1ba95cec03867
work_keys_str_mv	AT amirnourbakhsh acousticalpropertiesofwoodin20004000and8000inhertzferquencies AT abdolrahmanhosseinzadeh acousticalpropertiesofwoodin20004000and8000inhertzferquencies AT fardadgolbabaei acousticalpropertiesofwoodin20004000and8000inhertzferquencies AT abolfazlkargarfard acousticalpropertiesofwoodin20004000and8000inhertzferquencies
_version_	1718400594472861696

ACOUSTICAL PROPERTIES OF WOOD IN 2000, 4000 AND 8000 IN HERTZ FERQUENCIES

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