Open Journal of Acoustics

Volume 8, Issue 3 (September 2018)

ISSN Print: 2162-5786   ISSN Online: 2162-5794

Google-based Impact Factor: 0.25  Citations  

The Effect of Wood Condition on Sound Wave Propagation

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DOI: 10.4236/oja.2018.83004    1,583 Downloads   7,463 Views  Citations

ABSTRACT

This experiment aims to study the effects and modifications that occurred on acoustic signal harmonics when travelling through wood. The experiment measured the output amplitudes and frequencies of the travelling signals and compared them with the original input signal. The factors under investigation in this experiment included: wood type, wood moisture content (MC), input signal frequencies, signal travelling distance and wood condition (wood with/without cracks). The experiment findings demonstrated that higher input signal frequencies results in higher attenuation of acoustic emissions (AE) travelling through the wood. The results also indicate that: wood type, MC, the signal’s travelling distance, and the orientation of the travelling signal, compared to the wood’s grain direction, affected the signal propagation.

Share and Cite:

El-Hadad, A. , Brodie, G. and Ahmed, B. (2018) The Effect of Wood Condition on Sound Wave Propagation. Open Journal of Acoustics, 8, 37-51. doi: 10.4236/oja.2018.83004.

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