Acoustic characteristics of unidirectionally fiber-reinforced polyurethane foam composites for musical instrument soundboards

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概要

• 論文の詳細を見る

• Unidirectionally fiber-reinforced composites for the soundboard of musical instruments were made using glass fiber or carbon fiber and light-weighted hard polyurethane foam. The vibrational properties and frequency response characteristic of the composites were investigated by changing fibers, volume fraction of fibers and fiber distribution, and she results obtained were compared with those of Sitka spruce for soundboard. The composites, which had 5 to 6 volume percent of carbon fiber filaments distributed uniformly, exhibited almost the same acoustic property as Sitka spruce for soundboard. The retalts indicated that she acoustic characteristic of wood for soundboard in all audible frequency range could be mostly represented sting a simple wood model composed of unidirectionally oriented fibers and porous matrix foam.

• 社団法人日本音響学会の論文

著者

• Ono Teruaki

  Department of Mechanical and Systems Engineering, Faculty of Engineering, Gifu University

• Ono T

  Department Of Mechanical And Systems Engineering Faculty Of Engineering Gifu University

• Ono Teruaki

  Department Of Mechanical And Systems Engineering Faculty Of Engineering Gifu University

• Miyakoshi Souji

  Department of Mechanical and Systems Engineering, Faculty of Engineering, Gifu University

• Watanabe Ugai

  Department Precision Engineering, Faculty of Engineering, Chiba Institute of Technology,

• Watanabe Ugai

  Department Precision Engineering Faculty Of Engineering Chiba Institute Of Technology

• Watanabe Ugai

  Department Of Life & Environmental Sciences Faculty Of Engineering Chiba Institute Of Technology

• Miyakoshi Souji

  Department Of Mechanical And Systems Engineering Faculty Of Engineering Gifu University

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• Acoustic characteristics of unidirectionally fiber-reinforced polyurethane foam composites for musical instrument soundboards
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