Numerical Modelling of the Acoustic Properties of Polyester Non-woven

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dc.contributor.authorYang, Tao
dc.contributor.authorSaati, Ferina
dc.contributor.authorXiong, Xiao-Man
dc.contributor.authorWang, Yuan-Feng
dc.contributor.authorYang, Kai
dc.contributor.authorMishra, Rajesh
dc.contributor.authorMilitký, Jiří
dc.contributor.authorPetrů, Michal
dc.date.accessioned2019-12-12T08:06:51Z
dc.date.available2019-12-12T08:06:51Z
dc.date.issued2019
dc.description.abstractThis paper investigates the acoustical properties of polyester non-woven by using practical and numerical methods. Several types of non-woven samples made from staple, hollow and bi-component polyester fibres were chosen to carry out this study. The AFD300 Acoustic Flow device was used to measure airflow resistivity. The 45 mm Materiacustica two-microphone impedance tube was used to measure the surface impedance and sound absorption coefficient. Widely used impedance models, such as the Delany-Bazley, Miki, Garai-Pompoli and Komatsu models, were applied to predict acoustical properties. A comparison between measured and predicted values has been performed to derive the most accurate model. The Johnson-Champoux-Allard-Lafarge (JCAL) model was applied to obtain some non-acoustical properties based on the inverse method. It is found that the Delany-Bazley and Miki models can accurately predict the surface impedance of polyester non-woven. The results indicate that the Miki model is the most acceptable method for predicting the sound absorption coefficient, with an 8.39% mean error for all of the samples. The values are 8.92%, 12.58% and 69.67% for the Delany-Bazley, Garai-Pompoli and Komatsu models, respectively. Several difficult-to-obtain parameters have been investigated.cs
dc.identifier.urihttps://dspace.tul.cz/handle/15240/154289
dc.language.isocscs
dc.publisherTEXTILE BIOENGINEERING & INFORMATICS SOCIETY LTD, TBIS 2010 SECRETARIAT MN104, HONG KONG POLYTECHNIC UNIV, HONG KONG SAR, 0000, PEOPLES R CHINA
dc.relation.ispartofTextile Bioengineering and Informatics Symposium Proceedings
dc.subjectPolyestercs
dc.subjectNon-wovencs
dc.subjectModellingcs
dc.subjectAirflow Resistivitycs
dc.subjectImpedancecs
dc.subjectSound Absorptioncs
dc.titleNumerical Modelling of the Acoustic Properties of Polyester Non-wovencs
dc.typeProceedings Paper
local.citation.epage776
local.citation.spage767
local.event.edate2019-09-11
local.event.locationSoochow Univ, Coll Textile & Clothing Engn, Suzhou, PEOPLES R CHINA
local.event.sdate2019-09-08
local.event.title12th International Symposium of Textile Bioengineering and Informatics (TBIS) - Advanced Materials and Smart Wearables
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