An investigation into NVC characteristics of vehicle behaviour using modal analysis

NVC characterizations of vehicle behavior is one essential part of the development targets in automotive industries. Therefore understanding dynamic behavior of each structural part of the vehicle is a major requirement in improving the NVC characteristics of a vehicle. The main focus of this resear...

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Main Authors:	Hanouf, Zahir, Faris, Waleed Fekry, Ahmad, Kartini
Format:	Conference or Workshop Item
Language:	English English
Published:	Institute of Physics Publishing 2017
Subjects:	TL1 Motor vehicles
Online Access:	http://irep.iium.edu.my/56365/ http://irep.iium.edu.my/56365/ http://irep.iium.edu.my/56365/ http://irep.iium.edu.my/56365/1/56365_An%20investigation%20into%20NVC.pdf http://irep.iium.edu.my/56365/2/56365_An%20investigation%20into%20NVC_SCOPUS.pdf

id	iium-56365
recordtype	eprints
spelling	iium-563652017-06-21T01:11:51Z http://irep.iium.edu.my/56365/ An investigation into NVC characteristics of vehicle behaviour using modal analysis Hanouf, Zahir Faris, Waleed Fekry Ahmad, Kartini TL1 Motor vehicles NVC characterizations of vehicle behavior is one essential part of the development targets in automotive industries. Therefore understanding dynamic behavior of each structural part of the vehicle is a major requirement in improving the NVC characteristics of a vehicle. The main focus of this research is to investigate structural dynamic behavior of a passenger car using modal analysis part by part technique and apply this method to derive the interior noise sources. In the first part of this work computational modal analysis part by part tests were carried out to identify the dynamic parameters of the passenger car. Finite elements models of the different parts of the car are constructed using VPG 3.2 software. Ls-Dyna pre and post processing was used to identify and analyze the dynamic behavior of each car components panels. These tests had successfully produced natural frequencies and their associated mode shapes of such panels like trunk, hood, roof and door panels. In the second part of this research, experimental modal analysis part by part is performed on the selected car panels to extract modal parameters namely frequencies and mode shapes. The study establishes the step-by-step procedures to carry out experimental modal analysis on the car structures, using single input excitation and multi-output responses (SIMO) technique. To ensure the validity of the results obtained by the previous method an inverse method was done by fixing the response and moving the excitation and the results found were absolutely the same. Finally, comparison between results obtained from both analyses showed good similarity in both frequencies and mode shapes. Conclusion drawn from this part of study was that modal analysis part-by-part can be strongly used to establish the dynamic characteristics of the whole car. Furthermore, the developed method is also can be used to show the relationship between structural vibration of the car panels and the passengers' noise comfort inside the cabin. Institute of Physics Publishing 2017-04 Conference or Workshop Item PeerReviewed application/pdf en http://irep.iium.edu.my/56365/1/56365_An%20investigation%20into%20NVC.pdf application/pdf en http://irep.iium.edu.my/56365/2/56365_An%20investigation%20into%20NVC_SCOPUS.pdf Hanouf, Zahir and Faris, Waleed Fekry and Ahmad, Kartini (2017) An investigation into NVC characteristics of vehicle behaviour using modal analysis. In: 3rd International Conference on Mechanical, Automotive and Aerospace Engineering 2016 (ICMAAE’16), 25th-27th July 2016, Kuala Lumpur, Malaysia. http://iopscience.iop.org/article/10.1088/1757-899X/184/1/012027 10.1088/1757-899X/184/1/012027
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	TL1 Motor vehicles
spellingShingle	TL1 Motor vehicles Hanouf, Zahir Faris, Waleed Fekry Ahmad, Kartini An investigation into NVC characteristics of vehicle behaviour using modal analysis
description	NVC characterizations of vehicle behavior is one essential part of the development targets in automotive industries. Therefore understanding dynamic behavior of each structural part of the vehicle is a major requirement in improving the NVC characteristics of a vehicle. The main focus of this research is to investigate structural dynamic behavior of a passenger car using modal analysis part by part technique and apply this method to derive the interior noise sources. In the first part of this work computational modal analysis part by part tests were carried out to identify the dynamic parameters of the passenger car. Finite elements models of the different parts of the car are constructed using VPG 3.2 software. Ls-Dyna pre and post processing was used to identify and analyze the dynamic behavior of each car components panels. These tests had successfully produced natural frequencies and their associated mode shapes of such panels like trunk, hood, roof and door panels. In the second part of this research, experimental modal analysis part by part is performed on the selected car panels to extract modal parameters namely frequencies and mode shapes. The study establishes the step-by-step procedures to carry out experimental modal analysis on the car structures, using single input excitation and multi-output responses (SIMO) technique. To ensure the validity of the results obtained by the previous method an inverse method was done by fixing the response and moving the excitation and the results found were absolutely the same. Finally, comparison between results obtained from both analyses showed good similarity in both frequencies and mode shapes. Conclusion drawn from this part of study was that modal analysis part-by-part can be strongly used to establish the dynamic characteristics of the whole car. Furthermore, the developed method is also can be used to show the relationship between structural vibration of the car panels and the passengers' noise comfort inside the cabin.
format	Conference or Workshop Item
author	Hanouf, Zahir Faris, Waleed Fekry Ahmad, Kartini
author_facet	Hanouf, Zahir Faris, Waleed Fekry Ahmad, Kartini
author_sort	Hanouf, Zahir
title	An investigation into NVC characteristics of vehicle behaviour using modal analysis
title_short	An investigation into NVC characteristics of vehicle behaviour using modal analysis
title_full	An investigation into NVC characteristics of vehicle behaviour using modal analysis
title_fullStr	An investigation into NVC characteristics of vehicle behaviour using modal analysis
title_full_unstemmed	An investigation into NVC characteristics of vehicle behaviour using modal analysis
title_sort	investigation into nvc characteristics of vehicle behaviour using modal analysis
publisher	Institute of Physics Publishing
publishDate	2017
url	http://irep.iium.edu.my/56365/ http://irep.iium.edu.my/56365/ http://irep.iium.edu.my/56365/ http://irep.iium.edu.my/56365/1/56365_An%20investigation%20into%20NVC.pdf http://irep.iium.edu.my/56365/2/56365_An%20investigation%20into%20NVC_SCOPUS.pdf
first_indexed	2023-09-18T21:19:30Z
last_indexed	2023-09-18T21:19:30Z
_version_	1777411786448830464

An investigation into NVC characteristics of vehicle behaviour using modal analysis

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