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  • Summary & Details

Acoustic Metamaterial─The New Sound Insulation Material

新しい遮音材料「音響メタマテリアル」

Detailed Information

Category(J)ホットトピックス

Translation

Category(E)Hot Topics
Author(J)1) 三浦 進
Author(E)1) Susumu Miura
Affiliation(J)1) 日産自動車
Abstract(J)メタマテリアルとは波動の物理特性を自然界には存在しない状態に変える新しい材料である.メタマテリアルは電磁波を対象にアンテナの小型化等に応用されてきたが,近年になり音響波を対象とした応用が進展した.この応用例として軽量でありながら遮音性が高い材料である音響メタマテリアルに着目し,その特徴と示す.

Translation

Abstract(E)Metamaterials are new materials that change the physical properties of waves to a state that does not exist in nature. Metamaterials have been used to reduce the size of antennas for electromagnetic waves and have recently been applied to acoustic waves. As an example of this application, we focus on acoustic metamaterials, which are lightweight materials with high sound insulation properties, and show their characteristics.

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