A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Resonant cavity sound absorption structure and low-frequency sound insulation and heat preservation wall
The invention provides a resonant cavity sound absorption structure which comprises a hollow outer cavity and an insertion pipe penetrating into the outer cavity from the cavity wall of the outer cavity. One end of the intubation outside the outer cavity is open, and the other end is closed; the intubation tube is positioned in the outer cavity, and small holes are formed in the tube wall close to the opening end; a resonant sound cavity is formed between an outer cavity body of the resonant cavity sound absorption structure and an insertion pipe, air in the sound cavity generates a resonance effect along with sound waves, and sound wave energy is consumed; the invention further provides a low-frequency sound insulation and heat preservation wall applying the resonant cavity sound absorption structure, the low-frequency sound insulation and heat preservation wall comprises two layers of wallboards arranged in parallel and a resonant sound absorption body arranged between the two layers of wallboards and arranged along the peripheries of the wallboards, and the resonant sound absorption body comprises a plurality of resonant cavity sound absorption structures connected in sequence; according to the low-frequency sound insulation and heat preservation wall, sound waves entering the space between the two layers of wallboards are dissipated through the resonance sound absorbers, and the sound insulation capacity of the wall can be effectively improved in an environment-friendly mode.
本发明提出一种共振腔吸声结构，包括中空的外腔体和从外腔体的腔壁穿入内部的插管；插管位于外腔体外部的一端开口，另一端封闭；插管位于外腔体内且靠近开口端的管壁上设有小孔；该共振腔吸声结构的外腔体与插管之间形成共振音腔，音腔内的空气随声波产生共振作用，消耗声波能量；本发明还提出一种应用上述共振腔吸声结构的低频隔声保温墙体，包括平行设置的两层墙板和设置在两层墙板之间并沿墙板的周边布置的共振吸声体，共振吸声体包括依次连接的多个共振腔吸声结构，该低频隔声保温墙体通过共振吸声体对进入两层墙板之间的声波进行声能耗散，能够环保而有效的提升墙体的隔声能力。
Resonant cavity sound absorption structure and low-frequency sound insulation and heat preservation wall
The invention provides a resonant cavity sound absorption structure which comprises a hollow outer cavity and an insertion pipe penetrating into the outer cavity from the cavity wall of the outer cavity. One end of the intubation outside the outer cavity is open, and the other end is closed; the intubation tube is positioned in the outer cavity, and small holes are formed in the tube wall close to the opening end; a resonant sound cavity is formed between an outer cavity body of the resonant cavity sound absorption structure and an insertion pipe, air in the sound cavity generates a resonance effect along with sound waves, and sound wave energy is consumed; the invention further provides a low-frequency sound insulation and heat preservation wall applying the resonant cavity sound absorption structure, the low-frequency sound insulation and heat preservation wall comprises two layers of wallboards arranged in parallel and a resonant sound absorption body arranged between the two layers of wallboards and arranged along the peripheries of the wallboards, and the resonant sound absorption body comprises a plurality of resonant cavity sound absorption structures connected in sequence; according to the low-frequency sound insulation and heat preservation wall, sound waves entering the space between the two layers of wallboards are dissipated through the resonance sound absorbers, and the sound insulation capacity of the wall can be effectively improved in an environment-friendly mode.
本发明提出一种共振腔吸声结构，包括中空的外腔体和从外腔体的腔壁穿入内部的插管；插管位于外腔体外部的一端开口，另一端封闭；插管位于外腔体内且靠近开口端的管壁上设有小孔；该共振腔吸声结构的外腔体与插管之间形成共振音腔，音腔内的空气随声波产生共振作用，消耗声波能量；本发明还提出一种应用上述共振腔吸声结构的低频隔声保温墙体，包括平行设置的两层墙板和设置在两层墙板之间并沿墙板的周边布置的共振吸声体，共振吸声体包括依次连接的多个共振腔吸声结构，该低频隔声保温墙体通过共振吸声体对进入两层墙板之间的声波进行声能耗散，能够环保而有效的提升墙体的隔声能力。
Resonant cavity sound absorption structure and low-frequency sound insulation and heat preservation wall
一种共振腔吸声结构及低频隔声保温墙体
MA YUCHAO (author) / MO JUAN (author) / CAO WENQIN (author) / YANG ZHEN (author) / LI XIANG (author) / HUANG YIKANG (author) / ZHAI XIAOMENG (author) / QIU YONGJUN (author) / XU JIN (author) / FANG ZHENGGANG (author)
2024-10-29
Patent
Electronic Resource
Chinese
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