Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sound insulation structure and building material
The invention provides a sound insulation structure and a building material. The sound insulation structure is sequentially provided with at least two relatively fixed sound absorption structures along the propagation direction of sound waves, and the at least two sound absorption structures comprise a first sound absorption structure and a second sound absorption structure; wherein the first sound absorption structure comprises a phononic crystal, and the phononic crystal is configured to absorb sound waves of a first frequency band; the second sound absorption structure comprises at least one resonant cavity, and the at least one resonant cavity is configured to absorb sound waves of a second frequency band through resonance; wherein the lower limit value of the first frequency band is smaller than the lower limit value of the second frequency band. According to the sound insulation structure, lower-frequency wide-frequency-band sound absorption can be achieved, the sound insulation index of the sound absorption frequency band can be improved, and the sound insulation effect is improved.
本申请提供一种隔声结构及建筑材料。该隔声结构沿声波的传播方向依序设置有至少两个相对固定的吸声结构，至少两个吸声结构包括第一吸声结构和第二吸声结构；其中，第一吸声结构包括声子晶体，声子晶体被配置为吸收第一频段的声波；第二吸声结构包括至少一个谐振腔，至少一个谐振腔被配置为通过共振吸收第二频段的声波；其中，第一频段的下限值小于第二频段的下限值。上述隔声结构，可以实现更低频的宽频段吸声，且能够提升吸声频段的隔声量，提高隔声效果。
Sound insulation structure and building material
The invention provides a sound insulation structure and a building material. The sound insulation structure is sequentially provided with at least two relatively fixed sound absorption structures along the propagation direction of sound waves, and the at least two sound absorption structures comprise a first sound absorption structure and a second sound absorption structure; wherein the first sound absorption structure comprises a phononic crystal, and the phononic crystal is configured to absorb sound waves of a first frequency band; the second sound absorption structure comprises at least one resonant cavity, and the at least one resonant cavity is configured to absorb sound waves of a second frequency band through resonance; wherein the lower limit value of the first frequency band is smaller than the lower limit value of the second frequency band. According to the sound insulation structure, lower-frequency wide-frequency-band sound absorption can be achieved, the sound insulation index of the sound absorption frequency band can be improved, and the sound insulation effect is improved.
本申请提供一种隔声结构及建筑材料。该隔声结构沿声波的传播方向依序设置有至少两个相对固定的吸声结构，至少两个吸声结构包括第一吸声结构和第二吸声结构；其中，第一吸声结构包括声子晶体，声子晶体被配置为吸收第一频段的声波；第二吸声结构包括至少一个谐振腔，至少一个谐振腔被配置为通过共振吸收第二频段的声波；其中，第一频段的下限值小于第二频段的下限值。上述隔声结构，可以实现更低频的宽频段吸声，且能够提升吸声频段的隔声量，提高隔声效果。
Sound insulation structure and building material
隔声结构及建筑材料
QIAN SIWEN (Autor:in) / CHEN LONGHU (Autor:in) / QIU JUNJIE (Autor:in) / WAN HAIBO (Autor:in) / ZHOU YUNCHEN (Autor:in) / CHEN JIANDONG (Autor:in)
30.07.2024
Patent
Elektronische Ressource
Chinesisch
| Europäisches Patentamt | 2017