Investigation into noise problems in vehicle structure using vibro-acoustic approach

The main focus of this paper is the study of the relationship between components of vibration and noise inside the passenger cabin of a production vehicle. The noise inside automobiles is largely composed of contributions from the engine, ground and wind. The engine and tyres successively transfer t...

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Main Authors:	Hanouf, Zahir Ahmad, Faris, Waleed Fekry
Format:	Article
Language:	English
Published:	Inderscience Publishers 2009
Subjects:	TJ170 Mechanics applied to machinery. Dynamics
Online Access:	http://irep.iium.edu.my/4501/ http://irep.iium.edu.my/4501/ http://irep.iium.edu.my/4501/ http://irep.iium.edu.my/4501/1/IJVNV_3_2009.pdf

id	iium-4501
recordtype	eprints
spelling	iium-45012011-10-04T03:38:08Z http://irep.iium.edu.my/4501/ Investigation into noise problems in vehicle structure using vibro-acoustic approach Hanouf, Zahir Ahmad Faris, Waleed Fekry TJ170 Mechanics applied to machinery. Dynamics The main focus of this paper is the study of the relationship between components of vibration and noise inside the passenger cabin of a production vehicle. The noise inside automobiles is largely composed of contributions from the engine, ground and wind. The engine and tyres successively transfer the vibration via the structural connections to the body panels, which then propagates through the air to the interior of the car cabin. The analysis technique is based on the signal analysis method of sound pressure level and vibration response, and the modal analysis method of vehicle structural components. Firstly, the results were obtained by the noise contour test, which is a contour of sound pressure level, done over the horizontal cross-sectional plane inside the cabin. This was carried out under the random excitation, to predict the dominating noise frequencies. Secondly, the vibration response on the front suspension in the vertical direction under the engine excitation was studied. Finally, the modal analysis was used to determine the dynamic characteristics of every component of the vehicle body panels; this would contribute to the interior noise. It was found that the interior noise of the car vehicle is mainly caused by the excessive bending mode vibration of the front suspension and twisting mode vibration of the cross-roof beam. Inderscience Publishers 2009 Article PeerReviewed application/pdf en http://irep.iium.edu.my/4501/1/IJVNV_3_2009.pdf Hanouf, Zahir Ahmad and Faris, Waleed Fekry (2009) Investigation into noise problems in vehicle structure using vibro-acoustic approach. International Journal of Vehicle Noise and Vibration, 5 (3). pp. 238-260. ISSN 1479-148X (O), 1479-1471 (P) http://www.inderscience.com/search/index.php?action=record&rec_id=31029&prevQuery=&ps=10&m=or 10.1504/IJVNV.2009.031029
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 Hanouf, Zahir Ahmad Faris, Waleed Fekry Investigation into noise problems in vehicle structure using vibro-acoustic approach
description	The main focus of this paper is the study of the relationship between components of vibration and noise inside the passenger cabin of a production vehicle. The noise inside automobiles is largely composed of contributions from the engine, ground and wind. The engine and tyres successively transfer the vibration via the structural connections to the body panels, which then propagates through the air to the interior of the car cabin. The analysis technique is based on the signal analysis method of sound pressure level and vibration response, and the modal analysis method of vehicle structural components. Firstly, the results were obtained by the noise contour test, which is a contour of sound pressure level, done over the horizontal cross-sectional plane inside the cabin. This was carried out under the random excitation, to predict the dominating noise frequencies. Secondly, the vibration response on the front suspension in the vertical direction under the engine excitation was studied. Finally, the modal analysis was used to determine the dynamic characteristics of every component of the vehicle body panels; this would contribute to the interior noise. It was found that the interior noise of the car vehicle is mainly caused by the excessive bending mode vibration of the front suspension and twisting mode vibration of the cross-roof beam.
format	Article
author	Hanouf, Zahir Ahmad Faris, Waleed Fekry
author_facet	Hanouf, Zahir Ahmad Faris, Waleed Fekry
author_sort	Hanouf, Zahir Ahmad
title	Investigation into noise problems in vehicle structure using vibro-acoustic approach
title_short	Investigation into noise problems in vehicle structure using vibro-acoustic approach
title_full	Investigation into noise problems in vehicle structure using vibro-acoustic approach
title_fullStr	Investigation into noise problems in vehicle structure using vibro-acoustic approach
title_full_unstemmed	Investigation into noise problems in vehicle structure using vibro-acoustic approach
title_sort	investigation into noise problems in vehicle structure using vibro-acoustic approach
publisher	Inderscience Publishers
publishDate	2009
url	http://irep.iium.edu.my/4501/ http://irep.iium.edu.my/4501/ http://irep.iium.edu.my/4501/ http://irep.iium.edu.my/4501/1/IJVNV_3_2009.pdf
first_indexed	2023-09-18T20:12:45Z
last_indexed	2023-09-18T20:12:45Z
_version_	1777407586913484800

Investigation into noise problems in vehicle structure using vibro-acoustic approach

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