Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Movable film-shaped metamaterial sound barrier and mounting method
A movable film-shaped metamaterial sound barrier disclosed by the present invention comprises a film noise reduction unit and a structure fixing unit used for arranging and fixing the film noise reduction unit, and the film noise reduction unit comprises a microporous film, a first cavity, a first sound insulation layer, a second cavity and a second sound insulation layer which are arranged along a sound wave propagation direction, a plurality of micropores for absorbing sound waves are distributed on the surface of the microporous membrane; when sound waves enter the first cavity through the microporous film, the micropores and the first cavity are used for conducting preliminary noise reduction so as to reduce reflected sound generated by the sound waves, the sound energy of the transmission sound waves is reduced through the first sound insulation layer and the second sound insulation layer, and meanwhile the sound energy of the transmission sound waves is further reduced through the second cavity. The invention further provides an installation method. The sound barrier is convenient to disassemble and assemble and has the effects of sound insulation and sound absorption at the same time, and therefore noise pollution of construction equipment of a building construction site can be effectively reduced.
本发明公开了一种可移动式膜形超材料声屏障，包括薄膜降噪单元和用于布置固定所述薄膜降噪单元的结构固定单元，所述薄膜降噪单元包括沿声波传播方向布置的微孔膜、第一空腔，第一隔声层、第二空腔以及第二隔声层，所述微孔膜表面布有多个用于吸收声波的微孔；当声波通过微孔膜进入第一空腔，利用微孔与所述第一空腔进行初步降噪以降低声波所产生的反射声，通过第一隔声层和第二隔声层降低透射声波的声能，同时利用第二空腔进一步降低透射声波的声能。本发明还提供了一种安装方法。本发明提供的声屏障便于拆装且同时具备隔声和吸声的效果，从而可以有效降低建筑施工场地施工设备噪声污染。
Movable film-shaped metamaterial sound barrier and mounting method
A movable film-shaped metamaterial sound barrier disclosed by the present invention comprises a film noise reduction unit and a structure fixing unit used for arranging and fixing the film noise reduction unit, and the film noise reduction unit comprises a microporous film, a first cavity, a first sound insulation layer, a second cavity and a second sound insulation layer which are arranged along a sound wave propagation direction, a plurality of micropores for absorbing sound waves are distributed on the surface of the microporous membrane; when sound waves enter the first cavity through the microporous film, the micropores and the first cavity are used for conducting preliminary noise reduction so as to reduce reflected sound generated by the sound waves, the sound energy of the transmission sound waves is reduced through the first sound insulation layer and the second sound insulation layer, and meanwhile the sound energy of the transmission sound waves is further reduced through the second cavity. The invention further provides an installation method. The sound barrier is convenient to disassemble and assemble and has the effects of sound insulation and sound absorption at the same time, and therefore noise pollution of construction equipment of a building construction site can be effectively reduced.
本发明公开了一种可移动式膜形超材料声屏障，包括薄膜降噪单元和用于布置固定所述薄膜降噪单元的结构固定单元，所述薄膜降噪单元包括沿声波传播方向布置的微孔膜、第一空腔，第一隔声层、第二空腔以及第二隔声层，所述微孔膜表面布有多个用于吸收声波的微孔；当声波通过微孔膜进入第一空腔，利用微孔与所述第一空腔进行初步降噪以降低声波所产生的反射声，通过第一隔声层和第二隔声层降低透射声波的声能，同时利用第二空腔进一步降低透射声波的声能。本发明还提供了一种安装方法。本发明提供的声屏障便于拆装且同时具备隔声和吸声的效果，从而可以有效降低建筑施工场地施工设备噪声污染。
Movable film-shaped metamaterial sound barrier and mounting method
一种可移动式膜形超材料声屏障及安装方法
ZHAI GUOQING (Autor:in) / LI HANXIN (Autor:in) / LU LINGYUN (Autor:in) / GAO DEHONG (Autor:in) / ZHENG TIANFENG (Autor:in)
17.10.2023
Patent
Elektronische Ressource
Chinesisch
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