Prediction and reduction in vehicle noise by frequency response function–based substructuring

The purpose of this study was to use a hybrid frequency response function–based substructuring synthesis method to predict the structure-borne noise of a vehicle frame resulting due to excitation by the engine and to develop a noise reduction method for optimizing the subframe model. The finite elem...

Full description

Bibliographic Details
Main Author:	Hee-Min Noh
Format:	Article
Language:	English
Published:	SAGE Publishing 2016-06-01
Series:	Advances in Mechanical Engineering
Online Access:	https://doi.org/10.1177/1687814016642668

id	doaj-bcffcd9fb8cb416abde0a4f423ff6d1f
record_format	Article
spelling	doaj-bcffcd9fb8cb416abde0a4f423ff6d1f2020-11-25T03:40:42ZengSAGE PublishingAdvances in Mechanical Engineering1687-81402016-06-01810.1177/168781401664266810.1177_1687814016642668Prediction and reduction in vehicle noise by frequency response function–based substructuringHee-Min NohThe purpose of this study was to use a hybrid frequency response function–based substructuring synthesis method to predict the structure-borne noise of a vehicle frame resulting due to excitation by the engine and to develop a noise reduction method for optimizing the subframe model. The finite element models of the subframe were first verified by comparing their natural frequencies and frequency response functions with those of the real subframe models. Several substructures were then defined and the vehicle interior noises were predicted using the hybrid frequency response function–based substructuring synthesis method. Based on the prediction results, different target frequency ranges were selected, and different methods for optimizing the subframe model to reduce noise were investigated within the selected frequency ranges. Finally, the subframe modes within the selected frequency ranges were analyzed and new noise reduction models were developed by modifying the thickness of parts of the original subframe.https://doi.org/10.1177/1687814016642668
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Hee-Min Noh
spellingShingle	Hee-Min Noh Prediction and reduction in vehicle noise by frequency response function–based substructuring Advances in Mechanical Engineering
author_facet	Hee-Min Noh
author_sort	Hee-Min Noh
title	Prediction and reduction in vehicle noise by frequency response function–based substructuring
title_short	Prediction and reduction in vehicle noise by frequency response function–based substructuring
title_full	Prediction and reduction in vehicle noise by frequency response function–based substructuring
title_fullStr	Prediction and reduction in vehicle noise by frequency response function–based substructuring
title_full_unstemmed	Prediction and reduction in vehicle noise by frequency response function–based substructuring
title_sort	prediction and reduction in vehicle noise by frequency response function–based substructuring
publisher	SAGE Publishing
series	Advances in Mechanical Engineering
issn	1687-8140
publishDate	2016-06-01
description	The purpose of this study was to use a hybrid frequency response function–based substructuring synthesis method to predict the structure-borne noise of a vehicle frame resulting due to excitation by the engine and to develop a noise reduction method for optimizing the subframe model. The finite element models of the subframe were first verified by comparing their natural frequencies and frequency response functions with those of the real subframe models. Several substructures were then defined and the vehicle interior noises were predicted using the hybrid frequency response function–based substructuring synthesis method. Based on the prediction results, different target frequency ranges were selected, and different methods for optimizing the subframe model to reduce noise were investigated within the selected frequency ranges. Finally, the subframe modes within the selected frequency ranges were analyzed and new noise reduction models were developed by modifying the thickness of parts of the original subframe.
url	https://doi.org/10.1177/1687814016642668
work_keys_str_mv	AT heeminnoh predictionandreductioninvehiclenoisebyfrequencyresponsefunctionbasedsubstructuring
_version_	1724533251171680256

Prediction and reduction in vehicle noise by frequency response function–based substructuring

Similar Items