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Studi pengaruh perforasi terhadap koefisien absorpsi bunyi pada material gipsum = Study of the influence of perforation to the sound absorption coefficient of gypsum material

Palupi, Maharani Ratna; Djoko Triyono, supervisor; Efta Yudiarsah, examiner; Muhammad Aziz Majidi, examiner; Ghufron zaid, examiner ([Publisher not identified] , 2016)

 Abstrak

[ABSTRAK
Telah dilakukan penelitian tentang pengaruh diameter perforasi terhadap koefisien
absorpsi bunyi pada material gipsum secara eksperimen dengan menggunakan
metode pengukuran yang tercantum dalam ISO 354-1985. Sampel divariasikan
terhadap kondisi tanpa perforasi dan terhadap diameter perforasi yaitu 0,8 mm, 1,2
mm, 2 mm, 4 mm, 6 mm, 8 mm, 10 mm dan 12 mm. Ada dua konfigurasi sampel
yang diteliti, yaitu sampel lapis tunggal (Sampel T) dan sampel sandwich (Sampel
S). Hasil penelitian menunjukkan adanya peningkatan koefisien absorpsi bunyi
hingga 27,97% seiring dengan penambahan diameter perforasi terutama di
frekuensi 125 Hz, 250 Hz, dan 500 Hz. Kenaikan koefisien absorpsi bunyi juga
terjadi pada saat diberikan sisipan rockwool di antara dua panel gipsum. Kedua
konfigurasi sampel dengan diameter perforasi 12 mm bisa digunakan sebagai
pilihan bahan penyerap bunyi untuk pengendalian bunyi di frekuensi 125 Hz, 250
Hz, dan 500 Hz.

ABSTRACT
Investigation on the influence of the perforation diameter to the sound absorption
coefficient in the gypsum material has been conducted experimentally by using
measurement methods in ISO 354-1985. The samples were varied on the condition
perforation. Perforation diameter about none, 0.8 mm, 1.2 mm, 2 mm, 4 mm, 6 mm,
8 mm, 10 mm and 12 mm. There were two configurations of samples, namely a
single-layer samples (Sample T) and sandwich samples (Sample S). The results
show the increasing in sound absorption coefficients up to 27,97% along with the
addition of diameter perforations, especially in the frequency of 125 Hz, 250 Hz,
and 500 Hz. The increasing in sound absorption coefficient also occur during
insertion of rockwool between two gypsum panels. Both sample configuration with
12 mm diameter perforation can be used as a sound absorbent material to control
sound at frequencies of 125 Hz, 250 Hz, and 500 Hz., Investigation on the influence of the perforation diameter to the sound absorption
coefficient in the gypsum material has been conducted experimentally by using
measurement methods in ISO 354-1985. The samples were varied on the condition
perforation. Perforation diameter about none, 0.8 mm, 1.2 mm, 2 mm, 4 mm, 6 mm,
8 mm, 10 mm and 12 mm. There were two configurations of samples, namely a
single-layer samples (Sample T) and sandwich samples (Sample S). The results
show the increasing in sound absorption coefficients up to 27,97% along with the
addition of diameter perforations, especially in the frequency of 125 Hz, 250 Hz,
and 500 Hz. The increasing in sound absorption coefficient also occur during
insertion of rockwool between two gypsum panels. Both sample configuration with
12 mm diameter perforation can be used as a sound absorbent material to control
sound at frequencies of 125 Hz, 250 Hz, and 500 Hz.]

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 Metadata

No. Panggil : T44954
Entri utama-Nama orang :
Entri tambahan-Nama orang :
Entri tambahan-Nama badan :
Subjek :
Penerbitan : [Place of publication not identified]: [Publisher not identified], 2016
Program Studi :
Bahasa : ind
Sumber Pengatalogan : LibUI ind rda
Tipe Konten : text
Tipe Media : unmediated ; computer
Tipe Carrier : volume ; online resource
Deskripsi Fisik : xiii, 54 pages : illustration ; 30 cm + appendix
Naskah Ringkas :
Lembaga Pemilik : Universitas Indonesia
Lokasi : Perpustakaan UI, Lantai 3
  • Ketersediaan
  • Ulasan
No. Panggil No. Barkod Ketersediaan
T44954 15-17-055794371 TERSEDIA
Ulasan:
Tidak ada ulasan pada koleksi ini: 20422766