Improvement of Acoustic-Vibration Performance of E. urophylla by High-Temperature Heat Treatment

DOI

10.2991/icmia-17.2017.26How to use a DOI?

Keywords

Eucalyptus urophylla;heat treatment;acoustic performance; improvement

Abstract

The acoustic-vibration parameters of E. urophylla, including specific Young's modulus (E/ ), coefficient of sound-radiation resistance (R), and sound resistance ( ), before and after heat treatment were measured and characterized. Conditions for the heat treatment included N2 as the protection gas and temperatures of 210 øC, 220 øC, and 230 øC with holding times of 2 h, 3 h, and 4 h. The results showed that specific Young's modulus, and the coefficient of sound-radiation resistance increased, whereas sound resistance decreased, thereby improving the acoustic performance of the wood. The maximum increments were 9.31% for specific Young's modulus (210 øC, 3 h), and 18.68% for the coefficient of sound-radiation resistance (230 øC, 4 h). Conversely, the maximum decrease in sound resistance was -11.27% (230 øC, 4 h). Overall, the acoustic-vibration performance of E. urophylla was improved through heat treatment, with the best vibration performance obtained at 230 øC with a holding time of 4 h.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Ling Jing Zhu
AU  - Tao Jiang
AU  - Guofu Wu
PY  - 2017/06
DA  - 2017/06
TI  - Improvement of Acoustic-Vibration Performance of E. urophylla by High-Temperature Heat Treatment
BT  - Proceedings of the 2017 6th International Conference on Measurement, Instrumentation and Automation (ICMIA 2017)
PB  - Atlantis Press
SP  - 148
EP  - 153
SN  - 1951-6851
UR  - https://doi.org/10.2991/icmia-17.2017.26
DO  - 10.2991/icmia-17.2017.26
ID  - Zhu2017/06
ER  -