Numerical Modelling of the Acoustic Properties of Polyester Non-woven
dc.contributor.author | Yang, Tao | |
dc.contributor.author | Saati, Ferina | |
dc.contributor.author | Xiong, Xiao-Man | |
dc.contributor.author | Wang, Yuan-Feng | |
dc.contributor.author | Yang, Kai | |
dc.contributor.author | Mishra, Rajesh | |
dc.contributor.author | Militký, Jiří | |
dc.contributor.author | Petrů, Michal | |
dc.date.accessioned | 2019-12-12T08:06:51Z | |
dc.date.available | 2019-12-12T08:06:51Z | |
dc.date.issued | 2019 | |
dc.description.abstract | This 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.uri | https://dspace.tul.cz/handle/15240/154289 | |
dc.language.iso | cs | cs |
dc.publisher | TEXTILE BIOENGINEERING & INFORMATICS SOCIETY LTD, TBIS 2010 SECRETARIAT MN104, HONG KONG POLYTECHNIC UNIV, HONG KONG SAR, 0000, PEOPLES R CHINA | |
dc.relation.ispartof | Textile Bioengineering and Informatics Symposium Proceedings | |
dc.subject | Polyester | cs |
dc.subject | Non-woven | cs |
dc.subject | Modelling | cs |
dc.subject | Airflow Resistivity | cs |
dc.subject | Impedance | cs |
dc.subject | Sound Absorption | cs |
dc.title | Numerical Modelling of the Acoustic Properties of Polyester Non-woven | cs |
dc.type | Proceedings Paper | |
local.citation.epage | 776 | |
local.citation.spage | 767 | |
local.event.edate | 2019-09-11 | |
local.event.location | Soochow Univ, Coll Textile & Clothing Engn, Suzhou, PEOPLES R CHINA | |
local.event.sdate | 2019-09-08 | |
local.event.title | 12th International Symposium of Textile Bioengineering and Informatics (TBIS) - Advanced Materials and Smart Wearables |