Optimización de la absorción de sonido de un material textil
Keywords:
Sound absorption, polyester, nonwoven, fabric, design of experiments, DOE.Abstract
Affbrous sound absorbing material, such as a polyester nonwoven, can be covered with a layer of fabric for its protection and decoration, with an improvement of its sound absorption characteristics. In this work, the sound absorption coefffcient of a multilayer textile material composed by a 45mm polyester nonwoven and a layer of stuffed fabric, is measured using an impedance tube. Design of experiments is used to optimize two characteristics of the fabric like weft density and use of stufffng picks, so the highest sound absorption coefffcient is obtained in all the studied frequencies. Results show the combination of the studied factors that maximizes sound absorption.