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A platform for research: civil engineering, architecture and urbanism
Aluminum foil sound absorber structure type metal sound barrier body
The invention discloses an aluminum foil sound absorber structure type metal sound barrier screen body, and relates to the field of expressway traffic noise control, the aluminum foil sound absorber structure type metal sound barrier screen body comprises an aluminum foil sound absorption structure body, a cavity, a melamine sound absorption material and an outer frame, a clamping piece is arranged in the outer frame to fix the aluminum foil sound absorption structural body, a cavity is formed in the right side of the aluminum foil sound absorption structural body, and a melamine sound absorption material is arranged on the rear portion of the cavity. According to the sound barrier, the aluminum foil sound absorption structural body with the thickness of 15 mm is arranged, noise sound waves firstly make contact with the sound absorption structural body, the aluminum foil sound absorption material vibrates to consume energy of part of the sound waves, then sound makes contact with the sound absorption material through the cavity, the noise is further absorbed, and therefore the sound absorption frequency band of the sound barrier is effectively increased; the sound absorption coefficient of traffic noise with the frequency band ranging from 250 Hz to 2000 Hz can be kept at a high level, and the sound absorption and noise reduction effect of the sound barrier is greatly improved.
本发明公开了一种铝箔吸声体结构型金属声屏障屏体，涉及高速公路交通噪声控制领域，包括铝箔吸声结构体、空腔、三聚氰胺吸声材料以及外部框架，所述铝箔吸声结构体镶嵌在外部框架左端，所述外部框架内部设置卡件对铝箔吸声结构体进行固定，所述铝箔吸声结构体右侧设置空腔，所述空腔后部设置三聚氰胺吸声材料。本发明通过设置一种厚度为15mm的铝箔吸声结构体，噪声声波首先接触该吸声结构体，引起铝箔吸声材料振动消耗部分声波的能量，然后声音通过空腔接触吸声材料进一步对噪声吸收，从而有效增加了声屏障的吸声频段，可对频段在250Hz～2000Hz内的交通噪声吸声系数均维持在较高的水平，大大提升了声屏障的吸声降噪效果。
Aluminum foil sound absorber structure type metal sound barrier body
The invention discloses an aluminum foil sound absorber structure type metal sound barrier screen body, and relates to the field of expressway traffic noise control, the aluminum foil sound absorber structure type metal sound barrier screen body comprises an aluminum foil sound absorption structure body, a cavity, a melamine sound absorption material and an outer frame, a clamping piece is arranged in the outer frame to fix the aluminum foil sound absorption structural body, a cavity is formed in the right side of the aluminum foil sound absorption structural body, and a melamine sound absorption material is arranged on the rear portion of the cavity. According to the sound barrier, the aluminum foil sound absorption structural body with the thickness of 15 mm is arranged, noise sound waves firstly make contact with the sound absorption structural body, the aluminum foil sound absorption material vibrates to consume energy of part of the sound waves, then sound makes contact with the sound absorption material through the cavity, the noise is further absorbed, and therefore the sound absorption frequency band of the sound barrier is effectively increased; the sound absorption coefficient of traffic noise with the frequency band ranging from 250 Hz to 2000 Hz can be kept at a high level, and the sound absorption and noise reduction effect of the sound barrier is greatly improved.
本发明公开了一种铝箔吸声体结构型金属声屏障屏体，涉及高速公路交通噪声控制领域，包括铝箔吸声结构体、空腔、三聚氰胺吸声材料以及外部框架，所述铝箔吸声结构体镶嵌在外部框架左端，所述外部框架内部设置卡件对铝箔吸声结构体进行固定，所述铝箔吸声结构体右侧设置空腔，所述空腔后部设置三聚氰胺吸声材料。本发明通过设置一种厚度为15mm的铝箔吸声结构体，噪声声波首先接触该吸声结构体，引起铝箔吸声材料振动消耗部分声波的能量，然后声音通过空腔接触吸声材料进一步对噪声吸收，从而有效增加了声屏障的吸声频段，可对频段在250Hz～2000Hz内的交通噪声吸声系数均维持在较高的水平，大大提升了声屏障的吸声降噪效果。
Aluminum foil sound absorber structure type metal sound barrier body
一种铝箔吸声体结构型金属声屏障屏体
WANG YONGKANG (author) / LU LINGUO (author) / WANG NANNING (author) / BI CONGWEI (author) / LIU ZHILU (author) / ZHANG YANYAN (author) / FANG JIAXIANG (author) / XIE YAPING (author) / LU LIPENG (author) / CHENG FEI (author)
2024-10-11
Patent
Electronic Resource
Chinese
IPC:
E01F
ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
,
Zusätzliche Baumaßnahmen, wie die Ausstattung von Straßen oder die bauliche Ausbildung von Bahnsteigen, Landeplätzen für Hubschrauber, Wegweisern, Schneezäunen oder dgl.
Light efficient sound absorption type metal sound barrier body
| European Patent Office | 2024