Studi eksperimental terhadap porositas dan hambat alir udara pada komposit penyerap suara

Nasmi Herlina Sari, Jauhar Fajrin, IGNK Yudhyadi


In this paper, we present a comprehensive analytical and experimental investigation for the determination of the air flow resistivity and porosity of sound absorber composite. The ratio of the volume fraction of fiber and polyester resin is 15, 25, 35, 55 and 65 (%).The dimensions of the absorbent composite sample are 29 mm x 20 cm (diameter x thickness). Porosity and Air flow resistivity of composites have been investigated. The results showed that the porosity of the composites increased with increasing amount of fiber due to the interface between fiber and resinless dense. In contrast, the air flow resistivity values are lower with a denser resin and fiber interface.

Full Text:



Allard JF, Castagnede B, Henry M, Lauriks W., 1994. Evaluation of tortuosity in acoustic porous materials saturated by air. Rev Sci Instrum, 65:754–5.

Crocker, M. J., and Arenas, J. P. 2007. “Use of Sound-Absorbing Materials,” Chapter 57 in Handbook of Noise and Vibration Control (M.J.

Crocker, Ed.), John Wiley and Sons, New York.

Mechel F. P., “Formulas of Acoustics,” 2nd edition, Springer, Germany, 2008.

Maderuelo-Sanz R., Nadal-Sisbert A.V, Crespo-amorós J.E, et al., "A novel sound absorber with recycled fibers coming from the end of life tires ( ELTs )," Applied Acoustics, vol. 73, no. 4, pp. 402-408, 2012. doi:10.1016/j.apacoust.2011.12.001.

Sari NH., Wardana ING, Irawan YS, Siswanto E., 2017. Corn Husk Fiber–Polyester Composites as Sound Absorber: Nonacoustical and Acoustical Properties. Advances in Acoustics and Vibration. Volume 2017, Article ID 4319389,7 pages.

Sari NH., Wardana ING, Irawan YS, Siswanto E., 2017. Characterization of the Chemical, Physical, and Mechanical Properties of NaOH-treated Natural Cellulosic Fibers from Corn Husks. Journal of Natural Fibers, DOI:10.1080/15440478.2017.1349707. ISSN: 1544-0478.

Seddeq, H. S. 2009. Factors Influencing Acoustic Performance of Sound Absorptive Materials, Australian Journal of Basic and Applied Sciences, 3(4): 4610-4617. ISSN 1991-8178.

Umnova O, Attenborough K, Chul Shin H, Cummings, A., 2005. Deduction of tortuosity and porosity from acoustic reflection and transmission measurements on thick samples of rigid–porous materials. Applied Acoustics 66, 607–624.

Vašina M., Hughes D. C, Horoshenkov K. V, et al., 2006. “The acoustical properties of consolidated expanded clay granulates,” Applied Acoustics, vol. 67, pp. 787–796, 2006. doi:10.1016/j.apacoust.2005.08.003.



  • There are currently no refbacks.

Copyright (c) 2017 Dinamika Teknik Mesin

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

Editorial Address: Jurusan Teknik Mesin, Fakultas Teknik, Universitas Mataram, Jl. Majapahit no. 62, Mataram, NTB, 83125, Indonesia
Phone: +62(0370)636087; 082111738971 (WA)
E-ISSN: 2502-1729