On application of radiation loss factor in the prediction of sound transmission loss of a honeycomb panel
2010 (English)In: 17th International Congress on Sound and Vibration 2010, ICSV 2010: Volume 3, 2010, 1862-1869 p.Conference paper (Refereed)
The application of the radiation loss factor in the prediction of sound transmission loss of a lightweight, orthotropic sandwich panel is investigated in this paper. Comparisons between measurements and predicted results show that predictions often underestimate the sound transmission loss of the panel around the corresponding critical frequency when a measured loss factor, which in principle includes the radiation loss factor, is used. This is due to the methods used for the loss factor measurements and due to the fact that the band average loss factor is applied in the calculation. It is recommended to use the material loss factor measured at low frequencies plus the narrow band, theoretical radiation loss factor in order to improve the prediction of the sound transmission loss of a honeycomb panel around the critical frequency.
Place, publisher, year, edition, pages
2010. 1862-1869 p.
Average loss, Critical frequencies, Honeycomb panels, Loss factor, Material loss, Narrow bands, Radiation loss, Sandwich panel, Sound transmission loss
Engineering and Technology
IdentifiersURN: urn:nbn:se:kth:diva-59528ScopusID: 2-s2.0-84871403927ISBN: 978-161782255-1OAI: oai:DiVA.org:kth-59528DiVA: diva2:475632
17th International Congress on Sound and Vibration 2010, ICSV 2010; Cairo; Egypt; 18 July 2010 through 22 July 2010
QC 201201112012-01-112012-01-112014-08-15Bibliographically approved