Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Acoustic metamaterial sound absorption and insulation board suitable for low-frequency noise control
The invention relates to an acoustic metamaterial sound absorption and insulation board suitable for low-frequency noise control, and belongs to the technical field of noise reduction materials. The sound absorption and insulation plate comprises a plurality of unit cells made of perforated plates, honeycomb plate frames, back plates and filling particles. The back plate is a bottom plate of the unit cell; the cellular board frame is installed on the back board, the cellular boards are perpendicular to the back board, a plurality of separated areas are defined, and the cellular boards are the side walls of the unit cells; the perforated plate is mounted on the honeycomb plate frame and covers a plurality of mutually separated areas defined by the honeycomb plates to form a top plate of each unit cell, and the interior of each unit cell is communicated with the outside through a through hole in the perforated plate; the unit cells are filled with the filling particles. And a similar Helmholtz resonator form formed by the metamaterial unit cells can play a role in controlling low-frequency noise in a relatively wide frequency range. The manufacturing materials do not include elastic materials such as rubber films, so that the problem of tension change caused by aging of the elastic materials can be avoided.
本发明涉及一种适用于低频噪声控制的声学超材料吸隔声板，属于降噪材料技术领域。所述吸隔声板包括：多个由穿孔板，蜂窝板框架、背板和填充颗粒制成的单元胞；背板为单元胞的底板；蜂窝板框架安装在背板上，蜂窝板垂直于背板，围成多个互相分隔的区域，蜂窝板为单元胞的侧壁；穿孔板安装于蜂窝板框架上，覆盖由蜂窝板围成的多个互相分隔的区域，形成单元胞的顶板，每个单元胞的内部通过穿孔板上的通孔与外界连通；填充颗粒填充于单元胞内。超材料单元胞形成的类似赫姆霍兹共鸣器形式，能够对较宽频率范围中的低频噪声起控制作用。制造材料中不包括橡胶薄膜等弹性材料，因此能够避免弹性材料老化带来的张力改变问题。
Acoustic metamaterial sound absorption and insulation board suitable for low-frequency noise control
The invention relates to an acoustic metamaterial sound absorption and insulation board suitable for low-frequency noise control, and belongs to the technical field of noise reduction materials. The sound absorption and insulation plate comprises a plurality of unit cells made of perforated plates, honeycomb plate frames, back plates and filling particles. The back plate is a bottom plate of the unit cell; the cellular board frame is installed on the back board, the cellular boards are perpendicular to the back board, a plurality of separated areas are defined, and the cellular boards are the side walls of the unit cells; the perforated plate is mounted on the honeycomb plate frame and covers a plurality of mutually separated areas defined by the honeycomb plates to form a top plate of each unit cell, and the interior of each unit cell is communicated with the outside through a through hole in the perforated plate; the unit cells are filled with the filling particles. And a similar Helmholtz resonator form formed by the metamaterial unit cells can play a role in controlling low-frequency noise in a relatively wide frequency range. The manufacturing materials do not include elastic materials such as rubber films, so that the problem of tension change caused by aging of the elastic materials can be avoided.
本发明涉及一种适用于低频噪声控制的声学超材料吸隔声板，属于降噪材料技术领域。所述吸隔声板包括：多个由穿孔板，蜂窝板框架、背板和填充颗粒制成的单元胞；背板为单元胞的底板；蜂窝板框架安装在背板上，蜂窝板垂直于背板，围成多个互相分隔的区域，蜂窝板为单元胞的侧壁；穿孔板安装于蜂窝板框架上，覆盖由蜂窝板围成的多个互相分隔的区域，形成单元胞的顶板，每个单元胞的内部通过穿孔板上的通孔与外界连通；填充颗粒填充于单元胞内。超材料单元胞形成的类似赫姆霍兹共鸣器形式，能够对较宽频率范围中的低频噪声起控制作用。制造材料中不包括橡胶薄膜等弹性材料，因此能够避免弹性材料老化带来的张力改变问题。
Acoustic metamaterial sound absorption and insulation board suitable for low-frequency noise control
一种适用于低频噪声控制的声学超材料吸隔声板
ZHAO CHAOCHAO (Autor:in) / YU WUZHOU (Autor:in) / WANG BO (Autor:in) / ZHANG JIN (Autor:in) / CHU MENG (Autor:in) / CHU YANCHUN (Autor:in) / GE HONGHUI (Autor:in) / WU CHUNHUA (Autor:in) / LIANG ENHU (Autor:in) / FAN CHENYU (Autor:in)
26.01.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
E04B
Allgemeine Baukonstruktionen
,
GENERAL BUILDING CONSTRUCTIONS
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