Abstract
For building applications, woven fabrics have been widely used as finishing elements of room interior but not in particular aimed for sound absorbers. Considering the micro perforation of the woven fabrics, they should have potential to be used as micro-perforated panel (MPP) absorbers; some measurement results indicated such absorption ability. Hence, it is of importance to have a sound absorption model of the woven fabrics to enable us predicting their sound absorption characteristic that is beneficial in engineering design phase. Treating the woven fabric as a rigid frame, a fluid equivalent model is employed based on the formulation of Johnson-Champoux-Allard (JCA). The model obtained is then validated by measurement results where three kinds of commercially available woven fabrics are evaluated by considering their perforation properties. It is found that the model can reasonably predict their sound absorption coefficients. However, the presence of perturbations in pores give rise to inaccuracy of resistive component of the predicted surface impedance. The use of measured static flow resistive and corrected viscous length in the calculations are useful to cope with such a situation. Otherwise, the use of an optimized simple model as a function of flow resistivity is also applicable for this case.Keywords:
woven fabric, prediction model, sound absorber, building applicationsReferences
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24. Pieren R., Heutschi K. (2015), Predicting sound absorption coefficients of lightweight multilayer curtains using the equivalent circuit method, Applied Acoustics, 92, 27–41.
25. Prasetiyo I., Sarwono J., Sihar I. (2016), Study on inhomogeneous perforation thick micro-perforated panel sound absorbers, Journal of Mechanical Engineering and Sciences (JMES), 10, 3, 2350–2362.
26. Qian Y.J., Kong D.Y., Liu S.M., Sun S.M., Zhao Z. (2013), Investigation on micro-perforated panel absorber with ultra-micro perforations, Applied Acoustics, 74, 7, 931–935, https://doi.org/10.1016/j.apacoust.2013.01.009.
27. Qian Y.J., Zhang J., Sun N., Kong D.Y., Zhang X.X. (2017), Pilot study on wideband sound absorber obtained by adopting a serial-parallel coupling manner, Applied Acoustics, 124, 48–51, https://doi.org/10.1016/j.apacoust.2017.03.021.
28. Sakagami K, Morimoto M. (2008), Application of microperforated panel absorbers to room interior surfaces, International Journal of Acoustics and Vibration, 13, 3, 120–124.
29. Sarwono J., Prasetiyo, I., Andreas S., William A. (2014), The design of MPP and its application to enhance the acoustics of a real auditorium, paper presented at the Inter-Noise 43rd International Congress on Noise Control Engineering, Melbourne.
30. Shoshani Y., Rosenhouse G. (1990), Noise absorption by woven fabrics, Applied Acoustics, 30, 4, 321–333, https://doi.org/10.1016/0003-682X(90)90081-5.
31. Wu M.Q. (1997), Micro-perforated panels for duct silencing, Noise Control Engineering Journal, 45, 69–77.
2. Arenas J.P., Crocker M.J. (2010),Recent trends in porous sound-absorbing materials, Sound and Vibrations, 44, 12–17.
3. Arenas J.P., Rebolledo J., del Rey R., Alba J. (2014), Sound absorption properties of unbleached cellulose loose-fill insulation material, BioResources, 9, 4, 6227–6240.
4. Asdrubali F., Pispola G. (2007), Properties of transparent sound-absorbing panels for use in noise barriers, Journal of the Acoustical Society of America, 121, 1, 214–221.
5. Atalla N., Sgard F. (2007), Modeling of perforated plates and screens using rigid frame porous models, Journal of Sound and Vibration, 303, 1, 195–208, https://doi.org/10.1016/j.jsv.2007.01.012.
6. Bravo T., Maury C., Pinh´ede C. (2014), Microperforated panels for silencers in ducted systems, paper presented at the Forum Acusticum, Kraków, 2014-09-07, Poland.
7. Champoux Y, Allard J.F. (1991), Dynamic tortuosity and bulk modulus in air-saturated porous media, Journal of Applied Physics, 70, 4, 1975–1979, https://doi.org/10.1063/1.349482.
8. Cox T.J., D’Antonio P. (2009), Acoustic Absorbers and Diffusers, Taylor and Francis, London.
9. Delany M.E., Bazley E.N. (1970), Acoustical properties of fibrous absorbent materials, Applied Acoustics, 3, 2, 105–116, https://doi.org/10.1016/0003-682X(70)90031-9.
10. Desendra G., Hermanto M.N., Prasetiyo I., Adhika D.R. (2017), Experimental investigation of fabric-based micro perforated panel absorber, paper presented at the RECAV, Bali.
11. Fuchs H.V., Zha X. (2006), Micro-perforated structures as sound absorbers – a review and outlook, Acta Acustica united with Acustica, 92, 1, 139–146.
12. Herrin D.W., Liu J.H., Seybert A. (2011), Properties and applications of microperforated panels, Sound & Vibration, 45, 6–9.
13. ISO (1998), Standard 10534-2 Acoustics – Determination of sound absorption coefficient and impedance in impedance tubes – Transfer function method.
14. Jaouen L., B´ecot F.X. (2011), Acoustical characterization of perforated facings, The Journal of the Acoustical Society of America, 129, 3, 1400–1406, https://doi.org/10.1121/1.3552887.
15. Johnson D.L., Koplik J., Dashen R. (2006), Theory of dynamic permeability and tortuosity in fluidsaturated porous media, Journal of Fluid Mechanics, 176, 379–402, https://doi.org/10.1017/S0022112087000727.
16. Larsen J.L., Weeks J.G. (1975), Fabrics for interiors: a guide for architects, designers, and consumers, Wiley.
17. Lee Y.Y., Lee E.W.M., Ng C.F. (2005), Sound absorption of a finite flexible micro-perforated panel backed by an air cavity, Journal of Sound and Vibration, 287, 1, 227–243, https://doi.org/10.1016/j.jsv.2004.11.024.
18. Liu J., Herrin D.W. (2010), Enhancing microperforated panel attenuation by partitioning the adjoining cavity, Applied Acoustics, 71, 2, 120–127, https://doi.org/10.1016/j.apacoust.2009.07.016.
19. Liu Z., Zhan J., Fard M., Davy J.L. (2017), Acoustic properties of multilayer sound absorbers with a 3D printed micro-perforated panel, Applied Acoustics, 121, 25–32, https://doi.org/10.1016/j.apacoust.2017.01.032.
20. Maa D.-Y. (1975), Theory and design of microperforated panel sound-absorbing constructions, Scientia Sinica, 18, 1, 55–71, https://doi.org/10.1360/ya1975-18-1-55.
21. Maa D.-Y. (1987), Microperforated-panel wideband absorbers, Noise Control Engineering Journal, 29, 3, 77–84, https://doi.org/10.3397/1.2827694.
22. Maa D.-Y. (1998), Potential of microperforated panel absorber, The Journal of the Acoustical Society of America, 104, 5, 2861–2866, https://doi.org/10.1121/1.423870.
23. Pieren R. (2012), Sound absorption modeling of thin woven fabrics backed by an air cavity, Textile Research Journal, 82, 9, 864–874, https://doi.org/10.1177/0040517511429604.
24. Pieren R., Heutschi K. (2015), Predicting sound absorption coefficients of lightweight multilayer curtains using the equivalent circuit method, Applied Acoustics, 92, 27–41.
25. Prasetiyo I., Sarwono J., Sihar I. (2016), Study on inhomogeneous perforation thick micro-perforated panel sound absorbers, Journal of Mechanical Engineering and Sciences (JMES), 10, 3, 2350–2362.
26. Qian Y.J., Kong D.Y., Liu S.M., Sun S.M., Zhao Z. (2013), Investigation on micro-perforated panel absorber with ultra-micro perforations, Applied Acoustics, 74, 7, 931–935, https://doi.org/10.1016/j.apacoust.2013.01.009.
27. Qian Y.J., Zhang J., Sun N., Kong D.Y., Zhang X.X. (2017), Pilot study on wideband sound absorber obtained by adopting a serial-parallel coupling manner, Applied Acoustics, 124, 48–51, https://doi.org/10.1016/j.apacoust.2017.03.021.
28. Sakagami K, Morimoto M. (2008), Application of microperforated panel absorbers to room interior surfaces, International Journal of Acoustics and Vibration, 13, 3, 120–124.
29. Sarwono J., Prasetiyo, I., Andreas S., William A. (2014), The design of MPP and its application to enhance the acoustics of a real auditorium, paper presented at the Inter-Noise 43rd International Congress on Noise Control Engineering, Melbourne.
30. Shoshani Y., Rosenhouse G. (1990), Noise absorption by woven fabrics, Applied Acoustics, 30, 4, 321–333, https://doi.org/10.1016/0003-682X(90)90081-5.
31. Wu M.Q. (1997), Micro-perforated panels for duct silencing, Noise Control Engineering Journal, 45, 69–77.
