文章基本信息

标题：Improved Sound Absorption Performance of Nonwoven Fabric using Fabric Facing and Air Back Cavity
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作者：Ahmad Yusuf Ismail ; Ahmad Yusuf Ismail ; Muhamad Rafi Omar 等
期刊名称：MATEC Web of Conferences
电子版ISSN：2261-236X
出版年度：2017
卷号：97
页码：1-6
DOI：10.1051/matecconf/20179701086
语种：English
出版社：EDP Sciences
摘要：This paper presents the improvement methods to increase sound absorption performance of polyethylene based nonwoven fabric (PNF). The methods are placing a woven fabric in front of the sample as well as providing air cavity behind the sample. The samples were experimentally tested in an impedance tube based on ISO 10354-2:2001 whereby two microphones are used and the transfer matrix methods are employed. From the results, it can be seen that placing front woven fabric effectively increases sound absorption performance. Moreover, introducing air cavity gap behind the sample is also found to be more significant to increase sound absorption.