Effect of heat treatment on the acoustic properties of a wooden xylophone keyboard

Ho Yang Kang, Chun Won Kang, Seung Hyun Hong, Junji Matsumura

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

To estimate changes in the acoustic properties of a wooden xylophone keyboard caused by heat treatment, the resonant frequencies and logarithmic decrement of control and heat-treated specimens of Yezo spruce (Picea jezoensis), Northern red oak (Quercus rubra) and Japanese red pine (Pinus densiflora S. et Z.) were evaluated by the free vibration method. A flexural vibration test was carried out by the xylophone stick free fall impact test. The changes in resonant frequency of the first mode and those of other modes by heat treatment were evaluated. And the changes in logarithmic decrement by heat treatment were evaluated. As a result of heat treatment, the resonant frequencies of the 1st mode of all specimens were decreased, and within a species the wood specimens of higher resonant frequencies were more influenced. In the case of the specimen with a higher resonant amplitude at the 2nd mode resonance frequency, the resonant amplitude of the 1st mode resonance frequency was increased more by heat treatment, so that the sound became more stable.

本文言語英語
ページ(範囲)157-163
ページ数7
ジャーナルJournal of the Faculty of Agriculture, Kyushu University
61
1
出版ステータス出版済み - 2 2016

All Science Journal Classification (ASJC) codes

  • バイオテクノロジー
  • 農業および作物学

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