楽器用木材の周波数応答とその振動的性質との関連

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概要

• 論文の詳細を見る

• The frequency response and the Young's modulus, shear modulus and internal friction were measured for square boards with regularly-grained planes in several kinds of wood, which included Sitka spruce for stringed instrument top plates and maple for back plates, and for square boards in an acrylic resin of plastics and an aluminum of metals. The Sitka spruce was the highest in response frequency, higher in sound power level, the greatest in level variation and the greatest in level drop with increasing frequencies above 1kHz, and it had the response pattern of high level in the range of middle frequencies. In contrast, the maple had the response pattern of low and almost flat level as a whole. In order to have such frequency responses, it was necessary that wood for top plates had not only the excellent vibrational properties in the direction along grain but also the strong anisotropy in regularly-grained plane, and that wood for back plates had the characteristics opposite to those of wood for top plates.

• 社団法人日本音響学会の論文

著者

• 小野 晃明

  Department Of Mechanical And Systems Engineering Faculty Of Engineering Gifu University

関連論文

• 楽器用木材の過渡応答とその物性的メカニズム
• 楽器用木材の周波数応答とその振動的性質との関連
• 楽器響板用木材の音響特性に及ぼすニス塗装の影響

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