A study of noise transmission through cylindrical shell using modal truncation approach

The study of the vibroacoustic behavior of cylindrical structure like aircraft fuselage requires the establishment of very large models, and the numerical results which can be obtained are often difficult to interpret. On the other hand, the study of simple structures such as cylindrical shells is u...

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Main Authors:	El-Hafidi, Ali, Martin , Bruno, Faris, Waleed Fekry, Lay, Béatrice
Format:	Article
Language:	English
Published:	Inderscience Publishers 2011
Subjects:	TJ170 Mechanics applied to machinery. Dynamics
Online Access:	http://irep.iium.edu.my/4497/ http://irep.iium.edu.my/4497/ http://irep.iium.edu.my/4497/1/IJVNV070305_FARIS.pdf

id	iium-4497
recordtype	eprints
spelling	iium-44972011-10-04T03:38:47Z http://irep.iium.edu.my/4497/ A study of noise transmission through cylindrical shell using modal truncation approach El-Hafidi, Ali Martin , Bruno Faris, Waleed Fekry Lay, Béatrice TJ170 Mechanics applied to machinery. Dynamics The study of the vibroacoustic behavior of cylindrical structure like aircraft fuselage requires the establishment of very large models, and the numerical results which can be obtained are often difficult to interpret. On the other hand, the study of simple structures such as cylindrical shells is useful to validate the criteria and tools that can be used to simplify the models of complex structures. The presented study concerns the sound transmission through a cylindrical shell coupled to a cavity and subjected to an incident acoustic wave. Noise reduction is obtained and validated by a numerical method which uses structural and acoustical modes. A criterion for selecting eigen modes for the modal truncation is presented. Based on a principle of modal coupling, this criterion allows a judicious choice of modes that have an important influence on noise reduction. This criterion is used to reduce the length of acoustical and mechanical bases and to decrease time calculation. Inderscience Publishers 2011 Article PeerReviewed application/pdf en http://irep.iium.edu.my/4497/1/IJVNV070305_FARIS.pdf El-Hafidi, Ali and Martin , Bruno and Faris, Waleed Fekry and Lay, Béatrice (2011) A study of noise transmission through cylindrical shell using modal truncation approach. International Journal of Vehicle Noise and Vibration, 7 (3). pp. 271-284. ISSN 1479-148X (O), 1479-1471 (P) http://www.inderscience.com/search/index.php?action=record&rec_id=42424
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ170 Mechanics applied to machinery. Dynamics
spellingShingle	TJ170 Mechanics applied to machinery. Dynamics El-Hafidi, Ali Martin , Bruno Faris, Waleed Fekry Lay, Béatrice A study of noise transmission through cylindrical shell using modal truncation approach
description	The study of the vibroacoustic behavior of cylindrical structure like aircraft fuselage requires the establishment of very large models, and the numerical results which can be obtained are often difficult to interpret. On the other hand, the study of simple structures such as cylindrical shells is useful to validate the criteria and tools that can be used to simplify the models of complex structures. The presented study concerns the sound transmission through a cylindrical shell coupled to a cavity and subjected to an incident acoustic wave. Noise reduction is obtained and validated by a numerical method which uses structural and acoustical modes. A criterion for selecting eigen modes for the modal truncation is presented. Based on a principle of modal coupling, this criterion allows a judicious choice of modes that have an important influence on noise reduction. This criterion is used to reduce the length of acoustical and mechanical bases and to decrease time calculation.
format	Article
author	El-Hafidi, Ali Martin , Bruno Faris, Waleed Fekry Lay, Béatrice
author_facet	El-Hafidi, Ali Martin , Bruno Faris, Waleed Fekry Lay, Béatrice
author_sort	El-Hafidi, Ali
title	A study of noise transmission through cylindrical shell using modal truncation approach
title_short	A study of noise transmission through cylindrical shell using modal truncation approach
title_full	A study of noise transmission through cylindrical shell using modal truncation approach
title_fullStr	A study of noise transmission through cylindrical shell using modal truncation approach
title_full_unstemmed	A study of noise transmission through cylindrical shell using modal truncation approach
title_sort	study of noise transmission through cylindrical shell using modal truncation approach
publisher	Inderscience Publishers
publishDate	2011
url	http://irep.iium.edu.my/4497/ http://irep.iium.edu.my/4497/ http://irep.iium.edu.my/4497/1/IJVNV070305_FARIS.pdf
first_indexed	2023-09-18T20:12:44Z
last_indexed	2023-09-18T20:12:44Z
_version_	1777407586322087936

A study of noise transmission through cylindrical shell using modal truncation approach

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