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All Journal Jurnal Fisika Unand Emerging Science Journal Jurnal Ilmu Fisika MONSU'ANI TANO Jurnal Pengabdian Masyarakat BERNAS: Jurnal Pengabdian Kepada Masyarakat Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Eduvest - Journal of Universal Studies
Elvaswer Elvaswer
Departemen Fisika, Fakultas Matematika Dan Ilmu Pengetahuan Alam, Universitas Andalas
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Karakteristik Koefisien Absorpsi Bunyi dan Impedansi Akustik Dari Serat Ampas Tebu dan Plastik Dengan Metode Tabung Oktavia, Reni; Elvaswer, Elvaswer
Jurnal Fisika Unand Vol 13 No 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.1.61-67.2024

Abstract

Kebisingan adalah suara atau bunyi yang mengganggu di lingkungan masyarakat sehingga menyebabkan kesehatan terganggu seperti menurunnya etos kerja dan tidak bisa konsentrasi. Untuk itu dilakukan penelitian tentang karakteristik koefisien absorpsi bunyi dan impedansi akustik dari serat ampas tebu dan limbah plastik dengan metode tabung impedansi telah dilakukan. Material akustik yang diuji adalah campuran limbah plastik dan serat ampas tebu dengan perbandingan massa plastik (g):massa ampas tebu (g) yaitu 15:0 (sampel 1), 5:15 (sampel 2), 10:15 (sampel 3), 15:15 (sampel 4), 20:15 (sampel 5), dan 0:15 (sampel 6). Frekuensi uji yang digunakan pada penelitian adalah 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz, dan 8000 Hz. Hasil penelitian menunjukan bahwa nilai koefisien absorpsi bunyi tertinggi yaitu 0,96 pada sampel 6 saat frekuensi 1000 Hz, dan nilai koefisien absorpsi terendah yaitu 0,88 pada sampel 1 saat frekuensi 8000 Hz. Nilai impedansi akustik tertinggi yaitu 2,94 dyne.sec/cm5 pada sampel 6 saat frekuensi 1000 Hz, dan nilai impedansi akustik terendah yaitu 0,97 dyne.sec/cm5 pada sampel 1 saat frekuensi 8000 Hz. Semakin banyak serat ampas tebu yang ditambahkan pada plastik, maka nilai koefisien absorpsi semakin tinggi.
Karakteristik Koefisien Absorpsi Bunyi dan Impedansi Panel Akustik dari Styrofoam Menggunakan Metode Tabung Khairunisa, Zahwa; Elvaswer, Elvaswer
Jurnal Fisika Unand Vol 13 No 4 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.13.4.518-524.2024

Abstract

Research has been carried out regarding the sound absorption coefficient and impedance values of acoustic panels made from Styrofoam material, which aims to overcome sound noise. This research uses the impedance tube method, an acoustic material made from Styrofoam. Acoustic material samples are made from Styrofoam and have various shapes plain, non-perforated, perforated, serrated, ribbed, and hollow. The frequency ranges used in this research are 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz, and 8000 Hz. The results of the study show that the highest sound absorption coefficient value is in the sample with a through hole with a hole diameter of 0.8 cm and a depth of 1.8 cm at a frequency of 1000 Hz, namely 0.99 and the lowest sound absorption coefficient value is at a frequency of 8000 Hz,0.78 in the sample Plain. The highest acoustic impedance value was obtained at a frequency of 1000 Hz, namely 4.16 dyne.s/cm5 with a sample with a through hole. This is influenced by the diameter of the hole and the depth on the surface of the Styrofoam. Styrofoam material can be used as a sound-absorbing material based on the sound absorption coefficient and acoustic panel impedance values. 
Co-Authors Abu Khalid Rivai Abu Khalid Rivai Addina, Nesfi Ade Oktavia Ade Oktavia, Ade Adella Kusmala Dewi Adella Kusmala Dewi, Adella Kusmala Afdhal Muttaqin Amelia, Ingka Arif Budiman Arlindo Rizal Arlindo Rizal, Arlindo Arva Yogi Astuti Astuti Astuti Astuti Astuti Astuti Astuti Ayu Afifah Al-Farzaq Aziza, Yusratul Azri Risandi Bahar, Ilham Afriesta Bery, Winda Surya Dahyunir Dahlan Dari, Tika Wulan Dedi Mardiansyah Defrizal, Muhammad Dian Fitriyani Dian Fitriyani Dwi Pujiastuti Dwi Pujiastuti Dwi Puryanti El Basthoh Enny Zarvianti Enny Zavianti Essy Puspa Zelvia Fajri Ridhola Fajri Ridhola, Fajri Feriska Handayani Irka, Feriska Handayani FITRIANI, NOVA Frastica Deswardani Hafifah, Nurul Hamdani, Reza Harma Dwi Putri Harmadi Harmadi Harmadi Harmadi Hasmin, Hudya Fitra Hendri , Hendri , Hudya Fitra Hasmin Ikhsan, Khairatul Ilham Afriesta Bahar Ilham Perdana Imam Taufik Imam Taufiq Imam Taufiq Indradewa, Rhian Ingka Amelia Iqbal Ramadhan Iqbal Ramadhan Irene Wijaya Irene Wijaya, Irene Iswandi Iswandi Khairatul Ikhsan Khairunisa, Zahwa Maiyeni, Sinta Mardaleni Mardaleni Mardaleni, Mardaleni Mardiyanto Mardiyanto Mardiyanto Mardiyanto Marzuki Marzuki Marzuki Marzuki MD, Prima Ade Melia Rosa Meqorry Yusfi Mohammad Ali Shafii Mora Mora Mora Mora Mora Muhammad Arif Muhammad Arif Muhammad Kahfi Muhammad Kahfi Muldarisnur, Mulda Mutya Vonnisa Naela Amalia Zulfa Naela Amalia Zulfa Nesfi Addina Nikon, Muhammad Nova Fitriani Nurul Hafifah Nurul Hasanah Oktavia, Reni Palmasi Syahputra Paradita Ramli Prima Ade MD Putri, Harma Dwi Putri, Ya Rahmad Rasyid Rahmad Rasyid Rahmat Rasyid Rahmat Rasyid Ramacos Fardela Ramadhani, Sri Ramli, Paradita Rani Delvihardini Ratna Sari Dewi Ratna Sari Dewi Reni Oktavia Reza Hamdani Rezita, Yulia Risandi, Azri Risma, Yulda Riwanda, Rozi Rosa, Melia Rozi Riwanda Sari, Titit Puspita Sinta Maiyeni Solly Aryza Sonya Yuliantika Sonya Yuliantika Sonya Yuliantika, Sonya Sri Handani Sri Oktamuliani Sri Ramadhani Sulistioso G.S Sulistioso G.S, Sulistioso Sulistioso Giat Sukaryo Sulistioso Giat Sukaryo, Sulistioso Giat Syafnur, Zulfikri Syahputra, Palmasi Tika Wulan Dari Titit Puspita Sari Trengginas Eka Putra Sutantyo Usna, Sri Rahayu Alfitri Veithzal Rivai Zainal Vivi Wijaya Vonny Febrita Vonny Febrita, Vonny Wahyuni Putri Wahyuni Putri, Wahyuni Wijaya, Vivi Wildian Wildian Winda Surya Bery Ya Putri Yogi, Arva Yulda Risma Yulia Fitri Yulia Rezita Yulita Yulita Yulita Yulita, Yulita Yusratul Aziza Zahwa Khairunisa Zarvianti, Enny Zavianti, Enny Zelvia, Essy Puspa Zulfi Zulfi Zulfi Zulfikri Syafnur