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A platform for research: civil engineering, architecture and urbanism
Sound absorption and insulation wall body of mute cabin and mute cabin
The invention relates to a silencing cabin sound absorption and insulation wall which comprises a metal plate layer, a super-structure module layer, a butyl rubber damping layer, a wood board gypsum board layer and a polyester fiber board which are sequentially arranged in a stacked mode from outside to inside, the wood board gypsum board layer is made of wood boards and/or gypsum boards, an extending cavity is formed in the super-structure module layer, and the polyester fiber board is arranged in the cavity. And a plurality of holes are formed in the surface of the super-structure module layer. When sound waves enter the cavity from the metal plate layer, scattered reflection is generated to cause attenuation. Holes with certain sizes are designed in the surface of the metamaterial, so that entering sound waves can be attenuated and absorbed according to the Helmholtz principle, and the function of a sound absorption layer is achieved. And the sound absorption and insulation chain for sound insulation, sound absorption, shock absorption, sound insulation and sound absorption is formed through sequential stacking arrangement, and sound absorption and insulation are carried out on external sound waves to the maximum extent. The materials selected and used for each layer consider other design requirements of the silence cabin on the basis of considering the sound absorption and insulation performance.
本发明涉及一种静音舱吸隔声墙体，它包括从外向内依次层叠设置的钣金层、超构模块层、丁基橡胶阻尼层、木板石膏板层以及聚酯纤维板，木板石膏板层由木板和/或石膏板制成，超构模块层内部设置有延展的空腔，且超构模块层表面开设有若干孔洞。当声波从钣金层进入空腔时，产生散乱反射引发衰减。又因为超构材料表面设计有一定尺寸的孔洞，可以利用赫姆霍兹原理对进入的声波进行衰减吸收，起到吸音层的作用。且依次层叠设置形成了隔声→吸音→减震→隔声→吸声的吸隔声链条，对外界声波进行了最大限度的吸隔声。每层选用的材料都是在考虑吸隔声性能的基础上，又兼顾了静音舱的其他设计需要。
Sound absorption and insulation wall body of mute cabin and mute cabin
The invention relates to a silencing cabin sound absorption and insulation wall which comprises a metal plate layer, a super-structure module layer, a butyl rubber damping layer, a wood board gypsum board layer and a polyester fiber board which are sequentially arranged in a stacked mode from outside to inside, the wood board gypsum board layer is made of wood boards and/or gypsum boards, an extending cavity is formed in the super-structure module layer, and the polyester fiber board is arranged in the cavity. And a plurality of holes are formed in the surface of the super-structure module layer. When sound waves enter the cavity from the metal plate layer, scattered reflection is generated to cause attenuation. Holes with certain sizes are designed in the surface of the metamaterial, so that entering sound waves can be attenuated and absorbed according to the Helmholtz principle, and the function of a sound absorption layer is achieved. And the sound absorption and insulation chain for sound insulation, sound absorption, shock absorption, sound insulation and sound absorption is formed through sequential stacking arrangement, and sound absorption and insulation are carried out on external sound waves to the maximum extent. The materials selected and used for each layer consider other design requirements of the silence cabin on the basis of considering the sound absorption and insulation performance.
本发明涉及一种静音舱吸隔声墙体，它包括从外向内依次层叠设置的钣金层、超构模块层、丁基橡胶阻尼层、木板石膏板层以及聚酯纤维板，木板石膏板层由木板和/或石膏板制成，超构模块层内部设置有延展的空腔，且超构模块层表面开设有若干孔洞。当声波从钣金层进入空腔时，产生散乱反射引发衰减。又因为超构材料表面设计有一定尺寸的孔洞，可以利用赫姆霍兹原理对进入的声波进行衰减吸收，起到吸音层的作用。且依次层叠设置形成了隔声→吸音→减震→隔声→吸声的吸隔声链条，对外界声波进行了最大限度的吸隔声。每层选用的材料都是在考虑吸隔声性能的基础上，又兼顾了静音舱的其他设计需要。
Sound absorption and insulation wall body of mute cabin and mute cabin
静音舱吸隔声墙体和静音舱
LYU HONGXIANG (author) / ZHOU YI (author) / ZHANG SHENG (author) / XIE HAISHENG (author) / WANG JUE (author)
2022-12-09
Patent
Electronic Resource
Chinese
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