Sound Wave Absorption Coefficient and Sound Velocity in Thermally Modified Wood
The present work analyses the absorption coefficient of sound waves and the speed of sound propagation in thermally modified wood. The high resistance to weathering, fungi, and better dimensional stability, and therefore the broad physical properties of this material, are well known. However, the li...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/14/8136 |
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| author | Przemysław Mania Artur Flach Marta Pilarska |
| author_facet | Przemysław Mania Artur Flach Marta Pilarska |
| author_sort | Przemysław Mania |
| collection | DOAJ |
| description | The present work analyses the absorption coefficient of sound waves and the speed of sound propagation in thermally modified wood. The high resistance to weathering, fungi, and better dimensional stability, and therefore the broad physical properties of this material, are well known. However, the literature lacks numerous analyses of its acoustic characteristics. During the study, high-density species, such as oak, red oak, and beech were used, in contrast to pine. Pine wood during this test was characterised by a most rapid increase in the sound absorption coefficient value, in the range of 1000–6300 Hz, and reached the highest value from all wood species. Among all species, the highest value of the examined parameter was obtained for beech wood and pine wood, which were 0.213 (at frequency 3 kHz) and 0.183 (at 6.3 kHz), respectively. The sound velocity decreased for all species only in the tangential direction. |
| first_indexed | 2024-03-11T01:20:18Z |
| format | Article |
| id | doaj.art-17ec6ee6f1894396ae87be5e2adcbd7c |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T01:20:18Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-17ec6ee6f1894396ae87be5e2adcbd7c2023-11-18T18:08:47ZengMDPI AGApplied Sciences2076-34172023-07-011314813610.3390/app13148136Sound Wave Absorption Coefficient and Sound Velocity in Thermally Modified WoodPrzemysław Mania0Artur Flach1Marta Pilarska2Department of Wood Science and Thermal Techniques, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Wojska Polskiego 38/42, 60-627 Poznań, PolandAGH University in Krakow, Al. Mickiewicza 30, 30-059 Kraków, PolandDepartment of Wood Science and Thermal Techniques, Faculty of Forestry and Wood Technology, Poznań University of Life Sciences, Wojska Polskiego 38/42, 60-627 Poznań, PolandThe present work analyses the absorption coefficient of sound waves and the speed of sound propagation in thermally modified wood. The high resistance to weathering, fungi, and better dimensional stability, and therefore the broad physical properties of this material, are well known. However, the literature lacks numerous analyses of its acoustic characteristics. During the study, high-density species, such as oak, red oak, and beech were used, in contrast to pine. Pine wood during this test was characterised by a most rapid increase in the sound absorption coefficient value, in the range of 1000–6300 Hz, and reached the highest value from all wood species. Among all species, the highest value of the examined parameter was obtained for beech wood and pine wood, which were 0.213 (at frequency 3 kHz) and 0.183 (at 6.3 kHz), respectively. The sound velocity decreased for all species only in the tangential direction.https://www.mdpi.com/2076-3417/13/14/8136woodsound absorption coefficientsound velocitydynamic modulus of elasticityheat treatment |
| spellingShingle | Przemysław Mania Artur Flach Marta Pilarska Sound Wave Absorption Coefficient and Sound Velocity in Thermally Modified Wood Applied Sciences wood sound absorption coefficient sound velocity dynamic modulus of elasticity heat treatment |
| title | Sound Wave Absorption Coefficient and Sound Velocity in Thermally Modified Wood |
| title_full | Sound Wave Absorption Coefficient and Sound Velocity in Thermally Modified Wood |
| title_fullStr | Sound Wave Absorption Coefficient and Sound Velocity in Thermally Modified Wood |
| title_full_unstemmed | Sound Wave Absorption Coefficient and Sound Velocity in Thermally Modified Wood |
| title_short | Sound Wave Absorption Coefficient and Sound Velocity in Thermally Modified Wood |
| title_sort | sound wave absorption coefficient and sound velocity in thermally modified wood |
| topic | wood sound absorption coefficient sound velocity dynamic modulus of elasticity heat treatment |
| url | https://www.mdpi.com/2076-3417/13/14/8136 |
| work_keys_str_mv | AT przemysławmania soundwaveabsorptioncoefficientandsoundvelocityinthermallymodifiedwood AT arturflach soundwaveabsorptioncoefficientandsoundvelocityinthermallymodifiedwood AT martapilarska soundwaveabsorptioncoefficientandsoundvelocityinthermallymodifiedwood |