Mafaz, Bilqia (2024) Analisis Pengaruh Susunan Panel Komposit Sandwich Pada Serat Pisang Abaka/Papan Gypsum Terhadap Sound Transmission Loss Dengan Pendekatan Simulasi Insul 9.0 Dan Mass-law. Other thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Perkembangan penggunaan panel sandwich menawarkan alternatif dalam struktur bangunan karena keunggulannya dalam pemasangan dan kemampuan insulasi bunyi. Penelitian ini bertujuan menganalisis pengaruh susunan sandwich antara komposit serat pisang abaka dengan papan gypsum terhadap nilai sound transmission loss (STL) melalui simulasi INSUL 9.0 dan pendekatan mass-law. Komposit ini menggunakan resin epoxy sebagai matriks dan serat pisang abaka sebagai filler dengan perbandingan volume 70:30. Serat pisang abaka mengalami proses alkalisasi dengan larutan NaOH 5% dan hidrolisis dengan larutan CH3COOH 50% dalam kondisi vakum. Sampel uji dibuat dengan panjang serat pisang abaka 5 mm. Variasi susunan struktur sandwich meliputi GUG, GAG, GAGAG, GAGUG, GGAG, dan GGAGG dengan total ketebalan 10 cm (G: papan gypsum, A: serat pisang abaka, U: udara). Pengujian STL dari berbagai susunan dilakukan menggunakan simulasi INSUL 9.0 dan teori Mass-law. Berdasarkan simulasi INSUL 9.0, susunan GGAGG menunjukkan nilai STL terbaik dengan rentang 14 – 60 dB pada frekuensi 50 hingga 5000 Hz. Dari pendekatan Mass-law, nilai STL terbaik diperoleh dari struktur sandwich dengan empat panel gypsum, rentang STL 12 – 52 dB. Pengujian lanjut pada struktur GGAGG menggunakan tabung impedansi menunjukkan nilai STL 37 hingga 63 dB. Struktur GGAGG menghasilkan nilai STL lebih baik dibandingkan bata ringan "Citicon" dengan ketebalan sama, dengan selisih 6 – 33 dB pada frekuensi 50 – 5000 Hz.
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The development of sandwich panels offers an alternative in building structures due to their advantages in installation and sound insulation capability. This study aims to analyze the effect of sandwich arrangements between abaca banana fiber composites and gypsum board on sound transmission loss (STL) values using INSUL 9.0 simulation and the Mass-law approach. The composite uses epoxy resin as the matrix and abaca banana fiber as the filler with a volume fraction ratio of 70:30. The abaca banana fibers underwent alkali treatment with 5% NaOH solution and hydrolysis with 50% CH3COOH solution under vacuum conditions. Test samples were prepared with abaca banana fibers of 5 mm in length. The sandwich structure variations include GUG, GAG, GAGAG, GAGUG, GGAG, and GGAGG, with a total thickness of 10 cm (G: gypsum board, A: abaca banana fiber, U: air). The STL values of various arrangements were tested using INSUL 9.0 simulation and Mass-law theory. Based on the INSUL 9.0 simulation, the GGAGG arrangement showed the best STL values, ranging from 14 to 60 dB at frequencies from 50 to 5000 Hz. From the Mass-law approach, the best STL value was obtained from a sandwich structure consisting of four gypsum board panels, with an STL range of 12 to 52 dB. Further testing on the GGAGG structure using an impedance tube showed STL values ranging from 37 to 63 dB. The GGAGG structure achieved better STL values compared to "Citicon" lightweight bricks of the same thickness, with a difference of 6 to 33 dB at frequencies from 50 to 5000 Hz.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Mass law,Papan Gypsum,STL,Sandwich,Serat Pisang Abaka,Abaka Banana Fiber,Gypsum Board,Mass Law,Sandwich,Sound Transmission Loss (STL). |
| Subjects: | Q Science > QC Physics > QC173.4.C63 Composite materials Q Science > QC Physics > QC221 Acoustics. Sound |
| Divisions: | Faculty of Science and Data Analytics (SCIENTICS) > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Bilqia Mafaz |
| Date Deposited: | 01 Aug 2024 02:30 |
| Last Modified: | 11 Sep 2024 04:08 |
| URI: | http://repository.its.ac.id/id/eprint/110497 |
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