Comparison Sound Absorption Methods of Multilayer Micro-perforated Panels

Micro-perforated panel (MPP) absorbers as the next-generation sound absorbers are getting more widely use in aviation, automobiles, construction and other fields. It's a complex problem to predict the acoustic performance using surface impedance methods. The acoustic absorption performance of m...

Full description

Saved in:
Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 417; no. 1; pp. 12001 - 12006
Main Authors Min, Shen, Cong, Bai
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 19.10.2018
Subjects
Absorbers
Acoustic absorption
Acoustic impedance
Circuits
Equivalent circuits
Multilayers
Panels
Sound transmission
Transfer matrices
Online AccessGet full text

Cover

More Information
Summary:Micro-perforated panel (MPP) absorbers as the next-generation sound absorbers are getting more widely use in aviation, automobiles, construction and other fields. It's a complex problem to predict the acoustic performance using surface impedance methods. The acoustic absorption performance of micro-perforated panels were compared in terms of Transfer matrix method and Equivalent electric circuit approach (EECA). The calculated results show that transfer matrix method is more convenient and effective than the equivalent circuit approach especially to multiply layer micro-perforated absorbers.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/417/1/012001