Hatice Mehtap BULUKLU, Filiz BAL KOÇYİĞİT, Ercan KÖSE

Low-Cost Alpha Cabin Like Test Box Proposal for the Development of New Acoustic Sound Insulation Materials

Experimental criteria for sound insulation material recommendation and design have an important share in indoor acoustic control. Among these criteria, laboratories with devices such as impedance tubes, alpha cabins and reverberation rooms used to measure and analyze parameters such as sound transmission loss and sound absorption coefficient have been investigated. In literature, it has been observed that there are studies on acoustic materials and the tests applied to these materials, but the application is more limited. According to research data, an Alpha Cabin model system design that can be used to develop new types of acoustic sound materials has been proposed. In addition to the fact that a large number of experimental measurements can be performed at lower costs using the designed Alpha Cabin model system, many tests can be performed easily for different material designs in a very short time. To perform these tests, the Alpha Cabin system has been designed based on noise and sound insulation. For example, floating flooring, ribbed connection, and so on. Afterward, different insulation materials were used for insulation purposes and standards were achieved. The Alpha Cabin test system, which was designed and developed, overlaps the experimental and theoretical data for 500, 2000, and 4000 Hz when compared with the values of 29.1 dB for 500 Hz, 38.6 dB for 2000 Hz, and 49 dB for 4000 Hz measured in the Acoustic Facade Panel Test Room, and it has been observed that it can be used in the development of new sound insulation materials.

Keywords:

Acoustic, Alpha cabin Sound insulation, Acoustic materials, Low cost,

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[1] World Health Organization (WHO), “Night Noise Guidelines for Europe”, ISBN 978 92 890 4173 7, Denmark, https://www.euro.who.int/data/assets/pdf_file/0017/43316/E92845.pdf, 1-162, (2009).
[2] Kumar, S.T., Kumar, R.M., “Development of Needle Punched Non-woven Fabrics for Acoustic Application,” Department of Fashion Technology, Sona Collage of Technology”, Salem, Tamlinadu, India, ISSN: 0974- 4290, 8(7): 21-26, (2015).
[3] Malawade, U.A., Mahamuni, K.J., Madhavrao, G.J., Virendra, K.B., “Investigation of Sound Loss Potential of Natural Fibers and Their Compositions”, e-ISSN:2319-9873, Research & Reviews: Journal of Engineering and Technology, 6(1): 36-43, (2017).
[4] Fitriani, M. C., Yahya, I., Harjana, H., Ubaidillah, S., Aditya, F., Siregar, Y., Moeliono, M., Sulaksono, S., “Sound absorption enhancement of nonwoven felt by using coupled membrane-sonic crystal inclusion. Journal of Physics: Conference Series”, 776 (2016) 012073, 8th International Conference on Physics and its Applications (ICOPIA). DOI: 10.1088/1742-6596/776/1/012073, (2016).
[5] Duval, A., Rondeau, J.F., Dejeager, L., Sgard, F., Atalla, N., “Diffuse field absorption coefficient simulation of porous materials in small reverberant rooms: finite size and diffusivity issues”, 10eme Congres Francais d'Acoustique Lyon, 12-16 April 2010.
[6] Pereira, A., Gonçalves, H., Mateus, D., Godinho, L., Branco, F.G., “Assessment of non-standard experimental procedures to obtain sound absorption coefficient”, Forum Acusticum Krakow, 7–12 September, (2014).
[7] Veen, J.R., Pan, J., Saha, P., “Development of a Small Size Reverberation Room Standardized Test Procedure for Random Incident Sound Absorption Testing”, Kolano and Saha Engineers, Inc. Downloaded from SAE International by Bogazici University, Copyright 2012 SAE International, 2005-01-2284, p.7 Monday January 09, (2012).
[8] Varghese, V., Egab, L., Rajan, V., Fard, M., Jazar, R., and Miller, J.,“An Analytical Method for Acoustic Characterization of EV Interior Trims”, School of Aerospace, Mechanical and Manufacturing Engineering, RMIT University, Melbourne, Australia, (2012).
[9] Bansod, P.V., Teja, T.S., Mohanty, A. R., “Improvement of the sound absorption performance of jute felt-based sound absorbers using micro-perforated panels”, Journal of Low Frequency Noise, Vibration and Active Control, 36(4): 376–389, (2017). DOI: 10.1177/14613484177443 07
[10] Aygün, H., “Characterization of Acoustical Properties of Felt and Carpet Made of Natural and Environmentally Friendly Materials”, Scientific Research Publishing, School of Media Arts and Technology, Southampton Solent University, East Park Terrace, Southampton, UK Open Journal of Acoustics, 7, 27-38, (2017).
[11] Özel, D., “Measurement and Evaluation of Sound Absorption of Non-Woven Materials Used in Architecture with Impedance Tube”, Istanbul Technical University, Institute of Science, Architecture Department, Environmental Control and Construction Technology Program, (2017).
[12] Gürani, Y., Kadem, D, F., “The Acoustic Use of Textile Surfaces in Interior Design”, Eurasian Journal of Researches in Social and Economics (EJRSE), ISSN:2148- 9963, 5(6), 48-55, (2018).
[13] Canbolat, Ş., “Production of Wall Fabric Providing Thermal and Acoustic Insulation”, Istanbul Technical University, Institute of Science, Master Thesis, Istanbul, 1-103, (2013).
[14] Vidinlimen, G. T., “Acoustic Properties and Analysis of Porous Materials Used in the Automotive Industry”, Istanbul University, Master’s Thesis, Department of Mechanical Engineering, Mechanical Dynamics, Vibration and Acoustics, İstanbul, 1-125, (October 2010).
[15] Mikulski, W., “Method of Determining the Sound Absorbing Coefficient of Materials Within the Frequency Range Of 5000–50000 Hz In A Test Chamber Of A Volume Of About 2 m3”, Archives Of Acoustics, 38(2): 177–183, (2013).
[16] Can, H., “Measurement of Parameters in Porous Sound Absorbing Materials”, 10th National Acoustics Congress Yıldız Technical University Auditorium, İstanbul, (16-17 December), (2013).
[17] Can, H., “Improvement of Absorption Coefficient in Sound Absorbing Materials”, 11th National Acoustic Congress and Exhibition, Istanbul Technical University, Taşkışla, Istanbul, (19-20 October 2015).
[18] Doğru, T., Pulat, E., “Investigation of Acoustic Properties of Fibrous Materials Used in Automotive”, Uludağ University Journal of Engineering Faculty Research, 25(2): 889-902, (2020). DOI: 10.17482/ uumfd.703588
[19] Aksoylu, C., Mendi, E., Söylev, A., “Comparative examination of sound reduction index models in sound insulation”, Journal of the Faculty of Engineering and Architecture of Gazi University 31(4): 961-970, (2016).
[20] Batmaz, İ., Aydın, İ., “Determination of the Sound Absorption Coefficients of Insulation Materials Used on Vehicles, Journal of the Faculty of Engineering and Architecture of Gazi University, 27(4): 687-693, (2012).
[21] Zent, A., Long, T, J., “Automotive Sound Absorbing Material Survey Results”, (No. 2007-01-2186). SAE Technical Paper, (2007).
[22] Çalışkan, M., Belgin, E., “Noise in Working Life and Protection of Business, Turkish Medical Association Publications”, ISBN 975-6984-65-1, 1-116, (April 2004).
[23] Purwanto, B., Aryantie, M. H., Zulfachmi, Z., Aprishanty, R. Low-Cost and Portable Sound Reduction Box: Innovation for Acoustic Material Performance Measurement, October 2020, Journal of Engineering and Technological Sciences, 52(5): 732-744, (2020). DOI:10.5614/j.eng. Technol.sci.2020.52.5.9
[24] Páez, D. A., Herrera, L. J., Acosta O. E., M. Herrera., M. Revista. Evaluation of an acoustic conditioning panel made from typical Colombian fibres. Facultad de Ingeniería, Universidad de Antioquia, No.94: 102-116, (Jan-Mar), (2020).
[25] Bal Koçyiğit, F., “Investigation and Analysis of Sound Sources in the Graveyard of Metro Stations”, Gazi University, Institute of Science, PhD Thesis, Ankara, 1-130, (2003).
[26] Barron, F. R., “Industrial Noise Control and Acoustics. Louisiana Tech University”, Ruston, Louisiana, 18, (1-534), U.S.A., (2001).
[27] Ver, I. L., Beranek, L.L. “Noise and Vibration Control Engineering, Principles and Applications”, Second Edition, 1-943, (2006).
[28] Arenas, P. J., Crocker, J. M., “Recent Trends in Porous Sound-Absorbing Materials”, Materials Reference Issue, Sound & Vibration/July 2010: 12-17, (2010).
[29] Bal Koçyiğit, F., Acoustic Lecture Notları, (2021).
[30] Bal Koçyiğit, F., “Analysis of Frequency Band Factor for Sound Ergonomics in Three Different Types of Special Buildings”. Karabük University, Department of Architecture, Karabük, TURKEY, Technology, 12(4): 245-257, (2009).
[31] Bal Koçyiğit, F., “Railway Vibrations Transmitted Through the Ground and the Effect of Vibrations on Building Case Study From Ankara”, Technology Karabük University, Department of Architecture, Karabük, 13(2): 71-83, (2010).
[32] Awad, A., “Impulse noise reduction in audio signal through multi-stage technique”, Engineering Science and Technology, an International Journal, 22, 1134-1143, 22(2): 629-636, (2019).
[33] Bruel, Kjaer, “Sound Transmission Loss Measurement Manual with Type 2270-K”, 1-38.
[34] Bal Koçyiğit, F., MMR 672 Building Acoustic Theory Lecture Notes. https://moodle.atilim. edu.tr/course/view.php?id=3771, (2020).