Li, M;
van Renterghem, T;
Kang, J;
Botteldooren, D;
(2019)
Sound absorption by tree bark.
In:
Proceedings of the 23rd International Congress on Acoustics : integrating 4th EAA Euroregio 2019 : 9-13 September 2019 in Aachen, Germany.
(pp. pp. 582-587).
International Congress on Acoustics: Berlin, Germany.
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Abstract
Scattering of sound waves by trunks is part of the noise reducing potential of tree belts, and it has been shown before that the absorbing properties of the trunks are relevant in this respect. Detailed information on bark absorption is currently very limited. Therefore, laboratory experiments were conducted with an impedance tube to measure the bark sound absorption of various species, including variations in bark thickness, tree age, density, and trunk diameter. Preliminary measurements were made to define the relevant part of the trunk for its acoustic absorption and to come to a reproducible sample handling procedure. The measurements show that the absorption (at normal incidence) is generally below 0.1 for the deciduous species considered, and that there is a small variation in between them.
| Type: | Proceedings paper |
|---|---|
| Title: | Sound absorption by tree bark |
| Event: | 23rd International Congress on Acoustics |
| ISBN-13: | 9783939296157 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.18154/RWTH-CONV-239236 |
| Publisher version: | http://dx.doi.org/10.18154/RWTH-CONV-239236 |
| Language: | English |
| Additional information: | © 2019 ICA. This is an Open Access article published under the terms of a Creative Commons license (https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10119763 |
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