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Effects of damping treatments on acoustic properties of honeycomb panels
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Structural and vibroacoustics.
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, MWL Structural and vibroacoustics.ORCID iD: 0000-0002-9632-8398
2008 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Damping treatment is a common way to reducestructural vibration and as well as sound radiation. Inthis paper the effects of applying constrainedvisco-elastic damping treatment on lightweighthoneycomb structures are studied. Honeycomb panelsare well known for their high strength to weight ratiobut they rather possess poor acoustic transmissionproperties necessitating the use of additional dampinglayer treatments. However, although added damping isusually effective for vibration reduction it has oftenlittle effect on sound transmission. This paper comparesthe acoustic properties of honeycomb panels withdifferent core thicknesses and honey comb structuresthrough laboratory measurements. Constrainedvisco-elastic damping layers are tried on these panelsand a solution for a possible optimized dampingtreatment is studied.

Place, publisher, year, edition, pages
2008. in08_0275- p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:kth:diva-59534OAI: oai:DiVA.org:kth-59534DiVA: diva2:475643
Conference
INTER-NOISE 2008, the 37th International Congress and Exposition on Noise Control Engineering, Shanghai, China, 26-29 October, 2008
Note
QC 20120111Available from: 2012-01-11 Created: 2012-01-11 Last updated: 2012-01-11Bibliographically approved

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Feng, Leping

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