The Acoustical Properties of Indonesian Hardwood Species
The acoustical properties of four Indonesian tropical hardwood species were evaluated in this study. The objectives of this study were to determine acoustical parameters e.g. logarithmic decrement, sound absorption, sound velocity as well as density and wood stiffness; and to evaluate the potential...
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| Format: | Article |
| Language: | English |
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Universitas Indonesia
2012-08-01
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| Series: | Makara Seri Sains |
| Subjects: | |
| Online Access: | http://journal.ui.ac.id/index.php/science/article/view/1405/1235 |
| _version_ | 1818353950022172672 |
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| author | Tarcisius Rio Mardikanto Akhiruddin Maddu Lina Karlinasari Hans Baihaqi |
| author_facet | Tarcisius Rio Mardikanto Akhiruddin Maddu Lina Karlinasari Hans Baihaqi |
| author_sort | Tarcisius Rio Mardikanto |
| collection | DOAJ |
| description | The acoustical properties of four Indonesian tropical hardwood species were evaluated in this study. The objectives of this study were to determine acoustical parameters e.g. logarithmic decrement, sound absorption, sound velocity as well as density and wood stiffness; and to evaluate the potential of those species for acoustical purposes. Sonokeling (Dalbergia latifolia), Mahoni (Swietenia mahagony), Acacia (Acacia mangium) and Manii wood (Maesopsis eminii) were selected in this research. Three different cutting plane patterns of sawn timber (quarter-sawn, flat-sawn, and plain-sawn) were converted into small specimens. The methods for determining acoustical properties were longitudinal vibration testing and time of flight of ultrasonic wave method. The result showed no significant difference (α=0.05) of acoustical properties in logarithmic decrement, sound absorption, and ultrasonic velocity means on quarter-sawn, flat-sawn, and plain-sawn for all wood species tested. We found that Mahoni and Sonokeling had good acoustical properties of logarithmic decrement, ultrasonic wave velocity, and ratio of wood stiffness to wood density; and is preferred for crafting musical instruments. Acacia and Manii woods are recommended for developing acoustic panels in building construction because those species possess higher sound absorption values. |
| first_indexed | 2024-12-13T19:17:40Z |
| format | Article |
| id | doaj.art-2bf6e30528a64871a7ec40e1ae213c47 |
| institution | Directory Open Access Journal |
| issn | 1693-6671 |
| language | English |
| last_indexed | 2024-12-13T19:17:40Z |
| publishDate | 2012-08-01 |
| publisher | Universitas Indonesia |
| record_format | Article |
| series | Makara Seri Sains |
| spelling | doaj.art-2bf6e30528a64871a7ec40e1ae213c472022-12-21T23:34:15ZengUniversitas IndonesiaMakara Seri Sains1693-66712012-08-01162110114The Acoustical Properties of Indonesian Hardwood SpeciesTarcisius Rio MardikantoAkhiruddin MadduLina KarlinasariHans BaihaqiThe acoustical properties of four Indonesian tropical hardwood species were evaluated in this study. The objectives of this study were to determine acoustical parameters e.g. logarithmic decrement, sound absorption, sound velocity as well as density and wood stiffness; and to evaluate the potential of those species for acoustical purposes. Sonokeling (Dalbergia latifolia), Mahoni (Swietenia mahagony), Acacia (Acacia mangium) and Manii wood (Maesopsis eminii) were selected in this research. Three different cutting plane patterns of sawn timber (quarter-sawn, flat-sawn, and plain-sawn) were converted into small specimens. The methods for determining acoustical properties were longitudinal vibration testing and time of flight of ultrasonic wave method. The result showed no significant difference (α=0.05) of acoustical properties in logarithmic decrement, sound absorption, and ultrasonic velocity means on quarter-sawn, flat-sawn, and plain-sawn for all wood species tested. We found that Mahoni and Sonokeling had good acoustical properties of logarithmic decrement, ultrasonic wave velocity, and ratio of wood stiffness to wood density; and is preferred for crafting musical instruments. Acacia and Manii woods are recommended for developing acoustic panels in building construction because those species possess higher sound absorption values.http://journal.ui.ac.id/index.php/science/article/view/1405/1235acoustical propertieslogarithimic decrementsound absorptionultrasonic wave velocitytropical wood species |
| spellingShingle | Tarcisius Rio Mardikanto Akhiruddin Maddu Lina Karlinasari Hans Baihaqi The Acoustical Properties of Indonesian Hardwood Species Makara Seri Sains acoustical properties logarithimic decrement sound absorption ultrasonic wave velocity tropical wood species |
| title | The Acoustical Properties of Indonesian Hardwood Species |
| title_full | The Acoustical Properties of Indonesian Hardwood Species |
| title_fullStr | The Acoustical Properties of Indonesian Hardwood Species |
| title_full_unstemmed | The Acoustical Properties of Indonesian Hardwood Species |
| title_short | The Acoustical Properties of Indonesian Hardwood Species |
| title_sort | acoustical properties of indonesian hardwood species |
| topic | acoustical properties logarithimic decrement sound absorption ultrasonic wave velocity tropical wood species |
| url | http://journal.ui.ac.id/index.php/science/article/view/1405/1235 |
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