Potensi Sekam Padi dan Jerami sebagai Alternatif Material Akustik

Ahmad Minanur Rohim, Fianti Fianti, Upik Nurbaiti

Abstract


Technology that is increasingly developing produces equipments in the form of information, communication, production, transportation and entertainment facilities. Most of the equipments produce noises. Noise can be reduced by using acoustic dampers. This study aims to determine the potential for sound absorption from rice husks and straw as natural acoustic materials. Materials used include rice husks, rice straw, and resin. 12 cylindrical samples were made. Samples that have been made are tested using a sound absorption measuring instrument that is the impedance tube to measure the value of the sample sound absorption coefficient. The test results show the value of the sound absorption coefficient (α) can be influenced by the thickness. At a frequency of 500 Hz the value of the sound absorption coefficient (α) for each sample is 0.034dB; 0.030dB; 0.030dB; 0.027dB; 0.026dB; 0.027dB; 0.025dB; 0.025dB; 0.025dB; 0.024dB; 0.024dB; 0.023dB; 0.023dB. The sample material is good in research on materials 1 and 2 which have a sound absorption of 0.034 dB and 0.030 dB.


Keywords


Absorption potential; composite; rice husk; rice straw; wave.

Full Text:

PDF

References


Ashari, H. A., Heidari, M., dan Parvaresh, S. 2014. Improving SMTEsâ Business Performance through Strategic Use of Information Communicati-on Technology: ICT and Tourism Challenges and Opportunities. Internatio-nal Journal of Academic Research in Accounting, Finance and Management Sciences, 4 (3): 1–20.

Astika, I. M. dan Dwijana, I. G. K. 2016. Karakterstik Serapan Suara Komposit Polyester Berpenguat Serat Tapis Kelapa. Dinamika Teknik Mesin, 6 (1): 8–14.

Bahri, S., Manik, T. N., dan Suryajaya. 2016. Pengukuran Sifat Akustik Material Dengan Metode Tabung Impedansi Berbasis Platform Arduino. Jurnal Fisika Flux, 13 : 148–154.

Dharmawan, I. M. S., Suardana, N. P. G., Istri, C., dan Kusuma, P. 2018. Analisa Koefisien Penyerapan Suara dan Kekuatan Impact Komposit Hybrida Batu Apung Dengan Variasi Fraksi Volume Serat Sabut Kelapa 20 % Dan 25 %/ Gypsum. Jurnal Ilmiah TEKNIK DESAIN MEKANIKA, 7 (2): 165–169.

Ferreira, A. dan Fantuzzi, N. 2017. Mechcomp3. https://doi.org/10.15651/978-88-9385-029-2

Firman, Hasbi, M. dan Aksar, P. 2018. Studi Eksperimen Kekuatan Mekanik Daun Nanas Hutan Dengan Metode Pengujian Tarik. Jurnal Ilimiah Mahasiswa Teknik Mesin, 3 (1): 1–7.

Julius Novel Sagitta, I Ketut Gede Sugita, C. I. P. K. K. 2017. Variasi Ketebalan Panel Green Komposit Terhadap Koefisien Serap Bunyi Komposit Serabut Kelapa (Cocos Nuciferal) Dengan Perekat Getah Pinus (Pinus Merkusii). Jurnal Ilmiah TEKNIK DESAIN MEKANIKA, 6 (4): 318–322.

Luzzi, S. dan Busa, L. 2018. Acoustic Smartness And Sustainability In Urban Planning And Building Design. Euronise, (43): 837–844.

Mediastika, C. E. 2008. Kualitas Akustik Panel Dinding Berbahan Baku Jerami. DIMENSI (Jurnal Teknik Arsitektur), 36 (2): 127–134.

Muhammad Munir, D. 2015. Pemanfaatan Fluk pada Styrofoam sebagai Bahan Dasar Peredam Suara dengan Metode Tabung Impedansi. Jurnal Inovasi Fisika Indonesia, 04 : 41–47.

Suhaemi, T., Tongkukut, S. H. J., dan As’ari. 2013. Koefisien Serap Bunyi Papan Partikel Dari Bahan Serbuk Kayu Kelapa. Jurnal MIPA Unsrat, 2 (1): 56–59.

Tun, P. A., Williams, V. A., Small, B. J., dan Hafter, E. R. 2012. The effects of aging on auditory processing and cognition. American Journal of Audiology, 21 (2): 344–350.

Ulfayanti, A. 2016. Studi Karakteristik Material Akustik Berbahan Sandwich Kertas Koran dan Gabus dengan Perekat Sagu.

Waytz, A., Heafner, J., dan Epley, N. 2014. The mind in the machine: Anthropomorphism incre-ases trust in an autonomous vehicle. Journal of Experimental Social Psychology, 52 : 113–117.




DOI: http://dx.doi.org/10.21580/perj.2020.2.1.4883

Refbacks

  • There are currently no refbacks.


Copyright (c) 2020 Physics Education Research Journal

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

This journal has been indexed by:

 

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Physics Education Research Journal

Department of Physics Education
Faculty of Science and Technology
Universitas Islam Negeri Walisongo
Jln. Prof. Dr. Hamka Kampus II UIN Walisongo Semarang-Indonesia
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------


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

 Web Analytics Made Easy - StatCounter View My Stats