Lightweight soundproofing meta-panel for separate wide frequency bands

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 380
  • Download : 0
DC FieldValueLanguage
dc.contributor.authorKim, Jiwanko
dc.contributor.authorChoi, Eunjiko
dc.contributor.authorJeon, Wonjuko
dc.date.accessioned2022-09-01T01:00:12Z-
dc.date.available2022-09-01T01:00:12Z-
dc.date.created2022-08-31-
dc.date.created2022-08-31-
dc.date.issued2023-02-
dc.identifier.citationMECHANICAL SYSTEMS AND SIGNAL PROCESSING, v.184-
dc.identifier.issn0888-3270-
dc.identifier.urihttp://hdl.handle.net/10203/298226-
dc.description.abstractWe propose a lightweight soundproofing meta-panel that suppresses noise in separate wide frequency bands. The meta-panel has a multi-scale lattice structure sandwiched by two thin membranes. High sound isolation over a wide frequency range is achieved by inducing negative effective material properties of the meta-panel. Unlike a single-scale lattice structure, in which total transmission is unavoidable at certain frequencies due to resonances of the membranes, the meta-panel isolates sound waves effectively in separate wide bands with the aid of multiple reflections within the multi-scale lattice structure. A sound transmission loss exceeding 16.7 dB was realized within the range 100–1750 Hz by a meta-panel sample fabricated via three-dimensional printing. Aiming at practical applications in electric cars, we evaluated the insertion loss of the meta-panel in a box-shaped structure for dual-band noise which consists of road noise (100–400 Hz) and motor noise (1050–1350 Hz) recorded from an actual electric car. The proposed meta-panel had an overall sound pressure level reduction of about 19 dB for the given dual-band noise with a small areal density of 1.51 kg/m2, which is 1/20 times lighter than a steel plate with an equivalent reduction level.-
dc.languageEnglish-
dc.publisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD-
dc.titleLightweight soundproofing meta-panel for separate wide frequency bands-
dc.typeArticle-
dc.identifier.wosid000855710400005-
dc.type.rimsART-
dc.citation.volume184-
dc.citation.publicationnameMECHANICAL SYSTEMS AND SIGNAL PROCESSING-
dc.identifier.doi10.1016/j.ymssp.2022.109647-
dc.contributor.localauthorJeon, Wonju-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorSound isolation-
dc.subject.keywordAuthorAcoustic metamaterial-
dc.subject.keywordAuthorMulti -scale lattice structure-
dc.subject.keywordAuthorSeparate frequency bands-
dc.subject.keywordPlusROAD NOISE-
dc.subject.keywordPlusSOUND-
dc.subject.keywordPlusABSORPTION-
Appears in Collection
ME-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0