Topography optimization of an enclosure panel for low-frequency noise and vibration reduction using the equivalent radiated power approach

Kim, HG; Nerse, C; Wang, S

Topography optimization of an enclosure panel for low-frequency noise and vibration reduction using the equivalent radiated power approach

Kim, HG Nerse, C

Wang, S

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Materials and Design, 2019, 183
Issue Date:: 2019-12-05

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Field	Value	Language
dc.contributor.author	Kim, HG
dc.contributor.author	Nerse, C https://orcid.org/0000-0003-4003-6262
dc.contributor.author	Wang, S
dc.date.accessioned	2022-01-27T00:19:41Z
dc.date.available	2022-01-27T00:19:41Z
dc.date.issued	2019-12-05
dc.identifier.citation	Materials and Design, 2019, 183
dc.identifier.issn	0264-1275
dc.identifier.issn	1873-4197
dc.identifier.uri	http://hdl.handle.net/10453/153608
dc.description.abstract	An enclosure panel is widely used in industrial applications. The panel under a dynamic loading excites the surrounding air medium and noise is radiated into the acoustic space. The radiated sound can be suppressed by having changes in the structure. The noise reduction performance can be further improved by a design optimization. In this study, a topography optimization is conducted to design an enclosure panel. Topography optimization results in a bead pattern, which helps maintain the thickness at a constant level throughout the structure. The final optimized structure can be manufactured using a stamping process. Compared with other optimization methods, topography optimization requires minimal manufacturing effort and cost, with no additional increase in mass. Moreover, this type of optimization is effective for noise reduction problems because no holes are created in the structure. In this study, the objective function selected to minimize the low-frequency noise is the equivalent radiated power. The topography optimization of the enclosure panel has been conducted using the commercial software Altair OptiStruct, with loads and constraints considered. In order to verify the optimization result, in-situ experiment was performed with panels produced by the stamping process.
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation.ispartof	Materials and Design
dc.relation.isbasedon	10.1016/j.matdes.2019.108125
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	0910 Manufacturing Engineering, 0912 Materials Engineering, 0913 Mechanical Engineering
dc.subject.classification	Materials
dc.title	Topography optimization of an enclosure panel for low-frequency noise and vibration reduction using the equivalent radiated power approach
dc.type	Journal Article
utslib.citation.volume	183
utslib.for	0910 Manufacturing Engineering
utslib.for	0912 Materials Engineering
utslib.for	0913 Mechanical Engineering
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
utslib.copyright.status	open_access	*
dc.date.updated	2022-01-27T00:19:39Z
pubs.publication-status	Published
pubs.volume	183

Abstract:

An enclosure panel is widely used in industrial applications. The panel under a dynamic loading excites the surrounding air medium and noise is radiated into the acoustic space. The radiated sound can be suppressed by having changes in the structure. The noise reduction performance can be further improved by a design optimization. In this study, a topography optimization is conducted to design an enclosure panel. Topography optimization results in a bead pattern, which helps maintain the thickness at a constant level throughout the structure. The final optimized structure can be manufactured using a stamping process. Compared with other optimization methods, topography optimization requires minimal manufacturing effort and cost, with no additional increase in mass. Moreover, this type of optimization is effective for noise reduction problems because no holes are created in the structure. In this study, the objective function selected to minimize the low-frequency noise is the equivalent radiated power. The topography optimization of the enclosure panel has been conducted using the commercial software Altair OptiStruct, with loads and constraints considered. In order to verify the optimization result, in-situ experiment was performed with panels produced by the stamping process.

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