Optimization of Noise Transfer Path Based on the Composite Panel Acoustic and Modal Contribution Analysis

The noise of a cab directly affects the comfort and labor efficiency of the operators. The optimization of the structure-borne transmission path can obviously reduce the cab noise. The method of panel acoustic contribution analysis (PACA) is used to reduce structure noise. However, most studies only...

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Autores principales:	Qiang Liu, Xuanyi Zhou, Jianxin Zhu, Xiaoping Gong
Formato:	article
Lenguaje:	EN
Publicado:	Hindawi-Wiley 2021
Materias:	Electronic computers. Computer science QA75.5-76.95
Acceso en línea:	https://doaj.org/article/b4b48c0799854d22a3fb936223a81902
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id	oai:doaj.org-article:b4b48c0799854d22a3fb936223a81902
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spelling	oai:doaj.org-article:b4b48c0799854d22a3fb936223a819022021-11-29T00:57:08ZOptimization of Noise Transfer Path Based on the Composite Panel Acoustic and Modal Contribution Analysis1099-052610.1155/2021/3059865https://doaj.org/article/b4b48c0799854d22a3fb936223a819022021-01-01T00:00:00Zhttp://dx.doi.org/10.1155/2021/3059865https://doaj.org/toc/1099-0526The noise of a cab directly affects the comfort and labor efficiency of the operators. The optimization of the structure-borne transmission path can obviously reduce the cab noise. The method of panel acoustic contribution analysis (PACA) is used to reduce structure noise. However, most studies only consider the panel acoustic contribution of a single frequency, without considering the contribution of major frequencies synthesis to confirm the optimized panels. In this paper, a novel method is proposed based on composite panel acoustic and modal contribution analysis and noise transfer path optimization in a vibro-acoustic model. First, the finite element model (FEM) and the acoustic model are established. Based on the acoustic transfer vector (ATV) method, a composite panel acoustic contribution analysis method is proposed to identify the panels affecting the noise of the field point. Combined with the modal acoustic contribution of the modal acoustic transfer vector (MATV) method, the noise field point is confirmed in the area which has the most significant influence. Second, the optimization algorithm NLOPT which is a nonlinear optimization is applied to design the areas. The noise transfer path optimization with vibroacoustic coupling response can quickly determine the optimal thickness of the panels and reduce low-frequency noise. The effectiveness of the proposed method is applied and verified in an excavator cab. The sound pressure level (SPL) the driver’s right ear (DRE) decreased obviously. The acoustic analysis of the composite panel acoustic contribution and modal acoustic contribution can more accurately recognize an optimized area than the traditional PACA. This method can be applied in the optimization of the structure-borne transmission path for construction machinery cab and vehicle body.Qiang LiuXuanyi ZhouJianxin ZhuXiaoping GongHindawi-WileyarticleElectronic computers. Computer scienceQA75.5-76.95ENComplexity, Vol 2021 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electronic computers. Computer science QA75.5-76.95
spellingShingle	Electronic computers. Computer science QA75.5-76.95 Qiang Liu Xuanyi Zhou Jianxin Zhu Xiaoping Gong Optimization of Noise Transfer Path Based on the Composite Panel Acoustic and Modal Contribution Analysis
description	The noise of a cab directly affects the comfort and labor efficiency of the operators. The optimization of the structure-borne transmission path can obviously reduce the cab noise. The method of panel acoustic contribution analysis (PACA) is used to reduce structure noise. However, most studies only consider the panel acoustic contribution of a single frequency, without considering the contribution of major frequencies synthesis to confirm the optimized panels. In this paper, a novel method is proposed based on composite panel acoustic and modal contribution analysis and noise transfer path optimization in a vibro-acoustic model. First, the finite element model (FEM) and the acoustic model are established. Based on the acoustic transfer vector (ATV) method, a composite panel acoustic contribution analysis method is proposed to identify the panels affecting the noise of the field point. Combined with the modal acoustic contribution of the modal acoustic transfer vector (MATV) method, the noise field point is confirmed in the area which has the most significant influence. Second, the optimization algorithm NLOPT which is a nonlinear optimization is applied to design the areas. The noise transfer path optimization with vibroacoustic coupling response can quickly determine the optimal thickness of the panels and reduce low-frequency noise. The effectiveness of the proposed method is applied and verified in an excavator cab. The sound pressure level (SPL) the driver’s right ear (DRE) decreased obviously. The acoustic analysis of the composite panel acoustic contribution and modal acoustic contribution can more accurately recognize an optimized area than the traditional PACA. This method can be applied in the optimization of the structure-borne transmission path for construction machinery cab and vehicle body.
format	article
author	Qiang Liu Xuanyi Zhou Jianxin Zhu Xiaoping Gong
author_facet	Qiang Liu Xuanyi Zhou Jianxin Zhu Xiaoping Gong
author_sort	Qiang Liu
title	Optimization of Noise Transfer Path Based on the Composite Panel Acoustic and Modal Contribution Analysis
title_short	Optimization of Noise Transfer Path Based on the Composite Panel Acoustic and Modal Contribution Analysis
title_full	Optimization of Noise Transfer Path Based on the Composite Panel Acoustic and Modal Contribution Analysis
title_fullStr	Optimization of Noise Transfer Path Based on the Composite Panel Acoustic and Modal Contribution Analysis
title_full_unstemmed	Optimization of Noise Transfer Path Based on the Composite Panel Acoustic and Modal Contribution Analysis
title_sort	optimization of noise transfer path based on the composite panel acoustic and modal contribution analysis
publisher	Hindawi-Wiley
publishDate	2021
url	https://doaj.org/article/b4b48c0799854d22a3fb936223a81902
work_keys_str_mv	AT qiangliu optimizationofnoisetransferpathbasedonthecompositepanelacousticandmodalcontributionanalysis AT xuanyizhou optimizationofnoisetransferpathbasedonthecompositepanelacousticandmodalcontributionanalysis AT jianxinzhu optimizationofnoisetransferpathbasedonthecompositepanelacousticandmodalcontributionanalysis AT xiaopinggong optimizationofnoisetransferpathbasedonthecompositepanelacousticandmodalcontributionanalysis
_version_	1718407667956842496

Optimization of Noise Transfer Path Based on the Composite Panel Acoustic and Modal Contribution Analysis

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