Assessment of acoustic performance of composite structures with viscoelastic treatments

AuthorSearch for: ; Search for: ; Search for:
TypeArticle
Proceedings title42nd International Congress and Exposition on Noise Control Engineering 2013 (INTER-NOISE 2013): Noise Control for Quality of Life
Conference42nd International Congress and Exposition on Noise Control Engineering 2013: Noise Control for Quality of Life, September 15-18 2013, Innsbruck, Austria
ISBN9781632662675
Volume3
Pages19161923
SubjectComposite structures; Noise; Porous materials; Vibration; Viscoelastic materials
AbstractThe main objective of the work is to assess the acoustic performance of viscoelastic treatments versus the case when the treatment is incorporated as an equivalent added mass layer in various configurations of isotropic or composite structures under diffuse field excitation. The Discrete Laminate Method (DLM) was used in a Transfer Matrix Method (TMM) framework to compute the sound transmission loss of the structure with added noise control treatment. The numerical approach was compared with numerical results from literature and experimental data and was shown to accurately predict the sound transmission loss of composite structures with incorporated noise control treatments. Moreover, parametric studies of various configurations were considered in order to highlight promising behavioral trends for optimal noise control treatments design.
Publication date
PublisherInstitute of Noise Control Engineering
LanguageEnglish
AffiliationNational Research Council Canada; Aerospace
Peer reviewedYes
NPARC number23000462
Export citationExport as RIS
Report a correctionReport a correction
Record identifier27ccdcb6-759d-4845-9423-e71ae924c7e8
Record created2016-07-20
Record modified2016-07-20
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)