Claim Missing Document
Check
Articles

Found 1 Documents
Search
Journal : Jurnal Penelitian Fisika dan Aplikasinya (JPFA)

The Effect of Sample Density of Mixed Husk and Bran on Reflection and Transmission Coefficient of Acoustic Waves Tirtawaty Abdjul; Septiana Kurniasari; Nancy Katili; Citron Supu Payu
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 12 No. 2 (2022)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v12n2.p127-137

Abstract

Noise is a sound that is not desired because it is not in accordance with the context of activity, space, and time so it can cause disturbances to comfort and even human health. Twoof the basic ingredients of a silencer are husk and bran. This research aimed to determine the effect and model of the relationship of the density of the sample mixture of husks and bran on acoustic waves' reflection coefficient and transmission coefficient. The method used in this research is experimental, using a mixture of husk and bran samples whose density consists of 5 variations. The results showed that the husk and bran mixture's sample density strongly affected the reflection coefficient (r = 0.947 to r = 0.966) and the transmission coefficient (r = -0.962 to r = -0.999). These resultsshow that the greater the sample density of the husk and bran mixture, the greater the absorption intensity fraction produced. Statistically, the level of influence is indicated by the correlation coefficient, whose value is around r = 0.95 to r = 0.99. Based on the results, the reflection and transmission coefficients are influenced by the density of the mixture of husk and bran samples.
Co-Authors Abd Rahman Abdjul , Tirtawaty Abdul Haris Odja Alpinawati N. Masaguni Anak Agung Istri Sri Wiadnyani Anatasya Lagarusu Anisa Fauzia Asmiati Amir Asnan, Wa Ode Fatma Nur Asnianti A. Awila Asri Arbie Assagaf, Halisa Bokori, Nur A S Buhungo, Trisnawaty Junus Chairunnisah J Lamangantjo Danial, Yulistia Anggraini Daud, Manda Nur Aisia Dewa Gede Eka Setiawan Dewi Diana Paramata Donti, Yarti Dunggio, Dian Pitaloka Elvira Ariyanto Pakaya Fatmawati Linggile Fitria Hatiku Gamar Abdullah Gimnastiar, Asih Nurbaiti Hadju, Asri Febriyani Hayunida, Ode Helena Badu Hendra Hendra Hersiq Basri I Made Hermanto Iis Rahayu Timbola Ingka M. Djafar Irmawaty Umar Irsan Rahman Ismail Pakaya Ismail, Meyke Jahja, Mohamad Jepri Dikum Jolanda Hulda Debora Pilongo Lando, Felma Fitrah Mahfud Nur Solehan Mahmud, Andini Pratiwi M. Masra Latjompoh Masri Kudrat Umar Masrid Pikoli Meilan Demulawa Mohamad Fitrah Ramadhan Tatali Mohamad Nurkhojin Mohamad Yusuf Mohammad Yusuf Mohi, Margareta Putri Mokoagow, Annisa Mokoginta, Chindy Dahlia Muhammad Yunus Muhammad Yunus Muhammad Yusuf Muhammad Yusuf Mursalin Mursalin Mursalin . Naki, Nadrah Pratiwi Nancy Katili Niniek Pratiwi Nova Elysia Ntobuo Ntobuo, Nova E. Nurhayati Nurhayati Nursia Madjid Rachmi Laya Raghel Yunginger Rahayu Nusi Rahma Ramadanti Yusuf Ripo, Delsi Ritin Uloli Rusni Podungge Salmawaty Tansa Sambel, Nurhalisa Sarni Ngadi Septiana Kurniasari Siti Fatimah Sri Rumiyatiningsih Luwiti Sri Windi Akuba Sridiyanti S. Dunggio Supartin Supartin Supartin Supartin, Supartin Supu Idawati Suranti, Meliana Syam S. Kumaji Tirtawaty Abdjul Wirawan Fadly Wiwin Lestari Yulinda L. Ismail Yuszda K Salimi