A framework of flexible locally resonant metamaterials for attachment to curved structures

Yu, J; Nerse, C; Chang, KJ; Wang, S

A framework of flexible locally resonant metamaterials for attachment to curved structures

Yu, J Nerse, C

Chang, KJ Wang, S

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Publisher:: Elsevier BV
Publication Type:: Journal Article
Citation:: International Journal of Mechanical Sciences, 2021, 204, pp. 106533-106533
Issue Date:: 2021-08-15

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Field	Value	Language
dc.contributor.author	Yu, J
dc.contributor.author	Nerse, C https://orcid.org/0000-0003-4003-6262
dc.contributor.author	Chang, KJ
dc.contributor.author	Wang, S
dc.date.accessioned	2021-10-31T21:20:16Z
dc.date.available	2021-10-31T21:20:16Z
dc.date.issued	2021-08-15
dc.identifier.citation	International Journal of Mechanical Sciences, 2021, 204, pp. 106533-106533
dc.identifier.issn	0020-7403
dc.identifier.uri	http://hdl.handle.net/10453/151287
dc.description.abstract	Locally resonant metamaterials (LRMs) have been extensively investigated for their superior attenuation performance in the band gap frequencies despite not resulting in a large mass increase, comparatively. However, for their application on actual industrial structures, there exist limitations, the most important of which is the flexibility of the LRM structure. Several studies have succeeded in attaching LRMs to curved surfaces, but if the curvature changes, the unit structure must be redesigned. In this paper, a flexible LRM design independent of curvature is proposed, and numerical simulations illustrate the implementation of the band gap in a beam. Proof of concept of the flexible LRM has been shown through modal experiments on various curved surfaces. Excellent attenuation characteristics of the flexible LRM are demonstrated viaa comparison with a constrained layer damping treatment, which are typically considered in noise, vibration and harshness (NVH) area. As the proposed flexible LRM can be attached to various curvatures without restriction or redesign, it differentiates itself as a practical alternative to other LRM designs and expected to be explored in diverse applications.
dc.language	en
dc.publisher	Elsevier BV
dc.relation.ispartof	International Journal of Mechanical Sciences
dc.relation.isbasedon	10.1016/j.ijmecsci.2021.106533
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0905 Civil Engineering, 0910 Manufacturing Engineering, 0913 Mechanical Engineering
dc.subject.classification	Mechanical Engineering & Transports
dc.title	A framework of flexible locally resonant metamaterials for attachment to curved structures
dc.type	Journal Article
utslib.citation.volume	204
utslib.for	0905 Civil Engineering
utslib.for	0910 Manufacturing 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	closed_access	*
dc.date.updated	2021-10-31T21:20:14Z
pubs.publication-status	Published
pubs.volume	204

Abstract:

Locally resonant metamaterials (LRMs) have been extensively investigated for their superior attenuation performance in the band gap frequencies despite not resulting in a large mass increase, comparatively. However, for their application on actual industrial structures, there exist limitations, the most important of which is the flexibility of the LRM structure. Several studies have succeeded in attaching LRMs to curved surfaces, but if the curvature changes, the unit structure must be redesigned. In this paper, a flexible LRM design independent of curvature is proposed, and numerical simulations illustrate the implementation of the band gap in a beam. Proof of concept of the flexible LRM has been shown through modal experiments on various curved surfaces. Excellent attenuation characteristics of the flexible LRM are demonstrated viaa comparison with a constrained layer damping treatment, which are typically considered in noise, vibration and harshness (NVH) area. As the proposed flexible LRM can be attached to various curvatures without restriction or redesign, it differentiates itself as a practical alternative to other LRM designs and expected to be explored in diverse applications.

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http://hdl.handle.net/10453/151287