A Preliminary Study into Acoustic Properties of Acer Velutinum Wood

Document Type : Research Paper

Authors

1 M.Sc. Student, Department of Wood and Paper Science and Technology, Sari Branch, Islamic Azad University, Sari, I.R. Iran

2 Associate Professor, Department of Wood and Paper Science and Technology, College of Agriculture and Natural Resources, Karaj Branch, Islamic Azad University, Karaj, I.R. Iran

3 Assistant Professor, Department of Wood and Paper Science and Technology, Sari Branch, Islamic Azad University, Sari, I.R. Iran

Abstract

The course of consecutive experiments in this report aimed to a research or introductory identification about mechanical and acoustical properties of maple (Acer velutinum) wood. Studied factors were included quality factor (due to internal friction), acoustic coefficient, acoustical conversion efficiency as well as the modulus of elasticity (Young’s modulus) which they were all accomplished using contactless magnetic forced vibration of both ends free bar non-destructive method. The research specimens were extracted by solvent washings to reduce their extractive contents. Then their related vibrational properties were evaluated consecutively before and after each steps of successive extraction. Comparing to the previous literatures, results here showed that wood from maple is potentially utilizable in backs and ribs of Violin, Tar and wood-wind instruments. Reducing the extractive contents didn't affect the moduli of elasticity but was positive for the quality factor, acoustic coefficient and acoustical converting efficiency to improve their future acoustical performance i.e. musical instrument industry.

Keywords

References

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Forest and Wood Products
Volume 68, Issue 4 - Serial Number 4
January 2016
Pages 959-970

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