Experimental vibration analysis of a beam with ABH stiffeners

Martins, D; Karimi, M; Maxit, L

Experimental vibration analysis of a beam with ABH stiffeners

Martins, D

Karimi, M

Maxit, L

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Publisher:: QLD Division AAS
Publication Type:: Conference Proceeding
Citation:: Proceedings of Acoustics 2024: Acoustics in the Sun, 2024, pp. 1-2
Issue Date:: 2024-01-01

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Field	Value	Language
dc.contributor.author	Martins, D https://orcid.org/0000-0003-3237-2725
dc.contributor.author	Karimi, M https://orcid.org/0000-0002-2949-5364
dc.contributor.author	Maxit, L
dc.date	2024-11-27
dc.date.accessioned	2025-05-18T00:38:13Z
dc.date.available	2025-05-18T00:38:13Z
dc.date.issued	2024-01-01
dc.identifier.citation	Proceedings of Acoustics 2024: Acoustics in the Sun, 2024, pp. 1-2
dc.identifier.isbn	978-0-646-70515-6
dc.identifier.uri	http://hdl.handle.net/10453/187379
dc.description.abstract	In recent years, acoustic black holes (ABHs) have gained attention as a promising method for passive vibration control in engineering applications. This work experimentally investigates the use of ABHs in a stiffened beam to mitigate its vibrational response. The ABHs are embedded in the stiffeners rather than in the beam. Therefore, the structural integrity of the system is maintained. The study presents measured vibration responses of two stiffened beams excited by an impact force. The first case is a stiffened beam with traditional rectangular stiffeners, while the second case has ABH stiffeners. The ABH stiffeners are designed to match the surface area and moment of inertia of the rectangular stiffeners at the contact point with the beam, ensuring that both cases have similar weight and static stiffness. The experimental investigation explores two configurations: stiffeners without damping layers, and with constrained viscoelastic damping layers. The effect of the damping layers on the vibrational responses of both stiffened beams is examined. Results demonstrate the effectiveness of replacing traditional rectangular stiffeners with ABH stiffeners for vibration mitigation, highlighting the potential advantages of ABH technology in vibration reduction of stiffened structures.
dc.language	en
dc.publisher	QLD Division AAS
dc.relation.ispartof	Proceedings of Acoustics 2024: Acoustics in the Sun
dc.relation.ispartof	Annual Conference of the Australian Acoustical Society
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.title	Experimental vibration analysis of a beam with ABH stiffeners
dc.type	Conference Proceeding
utslib.location.activity	Gold Coast, QLD
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Mechanical and Mechatronic Engineering
pubs.organisational-group	University of Technology Sydney/UTS Groups
pubs.organisational-group	University of Technology Sydney/UTS Groups/Centre for Audio, Acoustics and Vibration (CAAV)
utslib.copyright.status	open_access	*
pubs.consider-herdc	false
dc.date.updated	2025-05-18T00:38:11Z
pubs.finish-date	2024-11-29
pubs.place-of-publication	Australia
pubs.publication-status	Published
pubs.start-date	2024-11-27
dc.location	Australia

Abstract:

In recent years, acoustic black holes (ABHs) have gained attention as a promising method for passive vibration control in engineering applications. This work experimentally investigates the use of ABHs in a stiffened beam to mitigate its vibrational response. The ABHs are embedded in the stiffeners rather than in the beam. Therefore, the structural integrity of the system is maintained. The study presents measured vibration responses of two stiffened beams excited by an impact force. The first case is a stiffened beam with traditional rectangular stiffeners, while the second case has ABH stiffeners. The ABH stiffeners are designed to match the surface area and moment of inertia of the rectangular stiffeners at the contact point with the beam, ensuring that both cases have similar weight and static stiffness. The experimental investigation explores two configurations: stiffeners without damping layers, and with constrained viscoelastic damping layers. The effect of the damping layers on the vibrational responses of both stiffened beams is examined. Results demonstrate the effectiveness of replacing traditional rectangular stiffeners with ABH stiffeners for vibration mitigation, highlighting the potential advantages of ABH technology in vibration reduction of stiffened structures.

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http://hdl.handle.net/10453/187379