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Theoretical Modeling and Experimental Fitness on Sound Absorption Characteristics of Nonwoven Fabrics  

Lee, Youn-Eung (Samsung Fine Chemicals Co. Ltd., R&D Center)
Joo, Chang-Whan (Department of Textile Engineering, Chungnam National University)
Publication Information
Textile Science and Engineering / v.42, no.6, 2005 , pp. 383-390 More about this Journal
Abstract
Nonwoven fabrics which have three dimensional microporous structure have been widely used for noise control in the civil and architecture fields. In this study, the sound absorption properties of the nonwoven fabrics produced by different manufacturing conditions were investigated using an impedance tube method. For the purpose of substitution of conventionally used sound absorber materials with polyester nonwovens, a theoretical model based on the microporous structure of nonwovens was established to predict the sound absorption coefficient(NAC) of nonwoven materials. In conclusion, it was found that the NAC significantly depended on the fiber fineness, web orientation and nonwoven thickness. The nonwovens composed of fine fiber, randomly oriented web and which have higher thickness showed definitely higher NAC than those of the opposite cases. Furthermore, the theoretical model established for the NAC of nonwovens was in good agreement with the experimental results, especially in the high frequency region.
Keywords
nonwoven sound absorption coefficient(NAC); impedance tube method;
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  • Reference
1 W. C. Huang and C. F. Ng, 'Sound Insulation Improvement Using Honeycomb-Sandwich Panels', Applied Acoustics, 1998, 53(3), 163-174   DOI   ScienceOn
2 Y. Shoshani, 'Use of Nonwovens as Components for Noise Insulating Barriers', INDA J Nonwoven Res, 1991, 3(2), 35-42
3 C. F. Ng and H. Zheng, 'Sound Transmission through Double-Leaf Corrugated Panel Constructions', Applied Acoustics, 1997, 53(1), 15-26   DOI   ScienceOn
4 Y. E. Lee, M. S. Baek, and C. W. Joo, 'Influence of Production Parameters on the Sound Absorption of Nonwoven Fabrics', Proceedings of the 5th ATC, Kyoto, Japan, September, p.460, 1999
5 Y. E. Lee and C. W. Joo, 'Sound Absorption Properties of Thermally Bonded Nonwovens Based on Composing Fibers and Production Parameters', J Appl Polym Sci, 2004, 92, 2295-2302   DOI   ScienceOn
6 N. Voronina, 'An Empirical Model for Rigid Frame Porous Materials with High Porosity', Applied Acoustics, 1997, 51, 181-190   DOI   ScienceOn
7 N. Voronina, 'Improved Empirical Model of Sound Propagation Through a Fibrous Material', Applied Acoustics, 1996, 48, 121-135   DOI   ScienceOn
8 D. Takahashi, 'A New Method for Predicting the Sound Absorption of Perforated Absorber Systems', Applied Acoustics, 1997, 51(1), 71-80   DOI   ScienceOn
9 Y. Shoshani, M. A. Wilding, and K. Koyasu, 'Effect of Pile Parameters on the Noise Absorption Capacity of Tufted Carpets', Text Res J, 1991, 61(12), 736-740   DOI
10 L. L. Beranek and A. Lambert, 'Noise and Vibration Control Engineering', John Willy & Sons Co., 1992, pp.203-253
11 H. Takahara, 'The Sound Absorption Characteristics of Particulate Porous Ceramic Materials', Applied Acoustics, 1994, 41, 265-273   DOI   ScienceOn
12 F. P. Mechel, 'Design Charts for Sound Absorber Layers', J Acoustic Soc America, 1998, 83(3), 1002-1014
13 Y. Shoshani, 'Effect of Nonwoven Backings on the Noise Absorption Capacity of Tufted Carpets', Text Res J, 1990, 60(8), 452-462   DOI
14 N. Voronina, 'An Empirical Model for Elastic Porous Materials', Applied Acoustics, 1998, 55, 67-82   DOI   ScienceOn
15 N. Atalla, R. Panneton, and J. F. Allard, 'Sound Absorption by Nonhomogeneous Thin Porous Layers', Acoustica, 1997, 83(5), 891-902
16 Y. E. Lee and C. W. Joo, 'Sound Absorption Properties of Recycled Polyester Fibrous Assembly Absorber', Autex Research J, 2003, 3(2), 78-84
17 H. L. Kuntz, 'High-Intensity Sound in Air-Saturated, Fibrous Bulk Porous Materials', Ph. D. Thesis, University of Texas, Austin, 1982