基于纺织品的特定气流阻力和透气率对吸声性能的预测。

Prediction of sound absorption based on specific airflow resistance and air permeability of textiles.

作者信息

Tang Xiaoning, Jeong Cheol-Ho, Yan Xiong

机构信息

Acoustic Technology, Department of Electrical Engineering, Technical University of Denmark, Ørsteds Plads 352, DK-2800, Kongens Lyngby, Denmark.

Key Laboratory of Textile Science and Technology, Ministry of Education, College of Textiles, Donghua University, Shanghai 201620, China

出版信息

J Acoust Soc Am. 2018 Aug;144(2):EL100. doi: 10.1121/1.5049708.

DOI:10.1121/1.5049708

PMID:30180673

Abstract

Both specific airflow resistance and air permeability can be used as a parameter to estimate the sound absorption of textiles. The measurement of specific airflow resistance is specified in ISO 9053 (Int. Standards Org., 1991), but it is known to be inaccurate for low specific airflow resistance. This paper compares the measured specific airflow resistance according to ISO 9053 and those calculated from air permeability according to ISO 9237 (Int. Standards Org., 1995). The sound absorption coefficients predicted by Pieren's model [R. Pieren, Textile Res. J. (9), 864-874 (2012)] are compared with measurements by the impedance tube method, which concludes that those predicted from the air permeability are more accurate than those from the measured specific airflow resistance for textiles.

摘要

比气流阻力和透气率都可以用作估算纺织品吸声性能的参数。比气流阻力的测量方法在ISO 9053（国际标准化组织，1991年）中有规定，但已知对于低比气流阻力的情况，该方法并不准确。本文比较了根据ISO 9053测量得到的比气流阻力与根据ISO 9237（国际标准化组织，1995年）由透气率计算得到的比气流阻力。将皮伦模型[R. 皮伦，《纺织研究杂志》(9)，864 - 874（2012年）]预测的吸声系数与驻波管法的测量结果进行了比较，结果表明，对于纺织品而言，由透气率预测得到的吸声系数比由测量得到的比气流阻力预测得到的吸声系数更准确。