Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Prediction of some vibro-acoustic properties of sandwich plates with honeycomb and foam cores
KTH, School of Engineering Sciences (SCI), Aeronautical and Vehicle Engineering, Marcus Wallenberg Laboratory MWL.
2018 (English)In: Journal of the Acoustical Society of America, ISSN 0001-4966, E-ISSN 1520-8524, Vol. 144, no 3, p. 1600-1614Article in journal (Refereed) Published
Abstract [en]

A sixth-order differential equation governing the flexural vibration of sandwich plates is derived. The sandwich plates considered consist of laminates bonded to honeycomb or foam cores. The structures are assumed to be symmetric. Shear and rotation in core are included in the model. The effect on the bending stiffness of rotation and shear in the core is discussed. Shear effects are of great importance, whereas rotation of the core has only a marginal effect on the bending stiffness of lightweight sandwich plates. The bending stiffness of a sandwich plate is found to strongly depend on frequency. The bending stiffness of a structure determines its acoustical coupling to any surrounding fluid and thus its sound transmission loss and sound radiation ratio. Loss factors of sandwich plates are discussed. Boundary conditions are formulated for rectangular plates having simply supported, clamped, or free edges. There are five boundary conditions to be satisfied at each edge of the plate. The bending stiffness of simply supported and infinite plates is presented as a function of frequency. Expressions for the point mobility for infinite or simply supported finite panels are given.

Place, publisher, year, edition, pages
Acoustical Society of America , 2018. Vol. 144, no 3, p. 1600-1614
Keywords [en]
Acoustic properties, Acoustic wave propagation, Architectural acoustics, Boundary conditions, Honeycomb structures, Shear flow, Stiffness, Vibrations (mechanical), Bending stiffness, Flexural vibrations, Function of frequency, Marginal effects, Rectangular plates, Simply supported, Sound radiations, Sound transmission loss, Plates (structural components), article, foam, prediction, radiation, rigidity, rotation, sound transmission, vibration
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-236712DOI: 10.1121/1.5055233ISI: 000457802200060PubMedID: 30424650Scopus ID: 2-s2.0-85054138695OAI: oai:DiVA.org:kth-236712DiVA, id: diva2:1259307
Note

QC 20190222

Available from: 2018-10-29 Created: 2018-10-29 Last updated: 2020-03-09Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textPubMedScopus

Search in DiVA

By author/editor
Nilsson, A. C.
By organisation
Marcus Wallenberg Laboratory MWL
In the same journal
Journal of the Acoustical Society of America
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
pubmed
urn-nbn

Altmetric score

doi
pubmed
urn-nbn
Total: 6 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf