784863955@qq.com
快速通道
吸聲
當前位置:首頁 > 服務與產品 > 產品服務 > 吸聲

複合型吸隔聲模塊

2014-08-29 總瀏覽:

 

 

 

複合型吸隔聲模塊的表麵有很多小孔,聲音進入小孔後,便會在結構的內壁中胡亂反射,直至大部份聲波的能量都消耗了,變成熱能,達到了隔音的效果。
吸聲板特點

具有較強的吸收聲能、減低噪聲性能的材料。

吸聲材料按吸聲機理分為

①靠從表麵至內部許多細小的敞開孔道使聲波衰減的多孔材料,以吸收中高頻聲波為主,有纖維狀聚集組織的各種有機或無機纖維及其製品以及多孔結構的開孔型泡沫塑料和膨脹珍珠岩製品。

②靠共振作用吸聲的柔性材料膜狀材料,或板狀材料和穿孔板(各種板狀材料或金屬板上打孔而製得,吸收中頻)。以上材料複合使用,可擴大吸聲範圍,提高吸聲係數。控製噪聲。多孔材料除吸收空氣聲外,還能減弱固體聲和空室氣聲所引起的振動。將多孔材料填入各種板狀材料組成的複合結構內,可提高隔聲能力並減輕結構重量。
吸聲板用途

運用於城市輕軌、高架道路、動力設備、機械設備、鐵道、公路、橋梁、隧道、航空、航海、高架公路等場合的吸聲結構。

 

 

    There are many small pores on the surface of composite sound insulation module. After entering into them, the sound is randomly reflected within the structural inner wall till the most of sound wave energy is consumed and turns into the thermal energy; thus the sound insulation is realized.
Characteristics of panel absorber
    The panel absorber is made of the material that is capable of absorbing sound energy and reducing noise.
    According to the sound absorption mechanism, the sound absorption material can be divided into the following types: 

    The cellular material that achieves sound wave attenuate by means of tiny open pores distributed from the surface to the inner can absorb the high and medium-frequency sound wave; such as the organic and inorganic fiber with the fibriform gathering tissue (including their products), pored foamed plastic or the expanded perlite product with the porous structure.

    The flexible or the membrane material that may absorb sound via resonance, or the plate material or the perforated plate (it is made by perforating all kinds of plate materials or metal plates, used for absorbing the medium-frequency sound). The combination use of the above materials can expand the sound absorption range, improve the sound absorption coefficient, and control noise. In addition to absorbing air sound, the perforated material can also weaken the vibration caused by the solid-borne noise and the air-chamber noise. The perforated materials filled into the composite structure composed of various plate materials can improve the sound insulation capability and reduce the structural weight.


Use of panel absorber

    The panel absorber can be widely used in the sound absorption structures of urban light rail, elevated road, power plant, mechanical equipment, railway, highway, bridge, tunnel, aviation, navigation and overhead highway.

 

分享到:
www.jnyaoshan.com www.fenbiedu.com www.hztl520.com www.hottiegfs.com www.fffd8.com www.fusiontweet.com www.o-milan.com www.hzhanliao.com www.zizaa.cn www.ag0509.com