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Phononic crystal sandwich beam structure based on energy band folding
The invention relates to the technical field of vibration reduction structures, and provides a photonic crystal sandwich beam structure based on energy band folding, the photonic crystal sandwich beam structure comprises a first foundation beam, a second foundation beam and a sandwich layer, the second foundation beam and the first foundation beam are arranged side by side; the sandwich layer is fixedly connected between the first foundation beam and the second foundation beam and comprises at least two single sandwich bodies, and the single sandwich bodies are of symmetrical structures; the single sandwich bodies are sequentially arranged to form a circulation body, and the single sandwich bodies of the same circulation body are different in shape or size; the number of the circulating bodies is at least two, and the circulating bodies are sequentially arranged between the first foundation beam and the second foundation beam. The photonic crystal sandwich beam structure based on energy band folding is used for overcoming the defect that the band gap frequency band of a sandwich beam structure in the prior art is in the middle-high frequency band, and low-frequency vibration suppression in the one-dimensional space direction is achieved.
本发明涉及减振结构的技术领域，提供一种基于能带折叠的声子晶体夹芯梁结构，包括第一基础梁、第二基础梁和夹芯层，第二基础梁与所述第一基础梁并排设置；夹芯层固定连接于第一基础梁与第二基础梁之间，且包括至少两个夹芯单体，所述夹芯单体为对称结构；各夹芯单体依次排列形成循环体，同一循环体的各所述夹芯单体的形状或尺寸不同；所述循环体至少设置有两个，各所述循环体依次排列在所述第一基础梁和所述第二基础梁之间。本发明所述的一种基于能带折叠的声子晶体夹芯梁结构，用以解决现有技术中的夹芯梁结构的带隙频段处于中高频频段的缺陷，实现在一维空间方向上进行低频振动抑制。
Phononic crystal sandwich beam structure based on energy band folding
The invention relates to the technical field of vibration reduction structures, and provides a photonic crystal sandwich beam structure based on energy band folding, the photonic crystal sandwich beam structure comprises a first foundation beam, a second foundation beam and a sandwich layer, the second foundation beam and the first foundation beam are arranged side by side; the sandwich layer is fixedly connected between the first foundation beam and the second foundation beam and comprises at least two single sandwich bodies, and the single sandwich bodies are of symmetrical structures; the single sandwich bodies are sequentially arranged to form a circulation body, and the single sandwich bodies of the same circulation body are different in shape or size; the number of the circulating bodies is at least two, and the circulating bodies are sequentially arranged between the first foundation beam and the second foundation beam. The photonic crystal sandwich beam structure based on energy band folding is used for overcoming the defect that the band gap frequency band of a sandwich beam structure in the prior art is in the middle-high frequency band, and low-frequency vibration suppression in the one-dimensional space direction is achieved.
本发明涉及减振结构的技术领域，提供一种基于能带折叠的声子晶体夹芯梁结构，包括第一基础梁、第二基础梁和夹芯层，第二基础梁与所述第一基础梁并排设置；夹芯层固定连接于第一基础梁与第二基础梁之间，且包括至少两个夹芯单体，所述夹芯单体为对称结构；各夹芯单体依次排列形成循环体，同一循环体的各所述夹芯单体的形状或尺寸不同；所述循环体至少设置有两个，各所述循环体依次排列在所述第一基础梁和所述第二基础梁之间。本发明所述的一种基于能带折叠的声子晶体夹芯梁结构，用以解决现有技术中的夹芯梁结构的带隙频段处于中高频频段的缺陷，实现在一维空间方向上进行低频振动抑制。
Phononic crystal sandwich beam structure based on energy band folding
基于能带折叠的声子晶体夹芯梁结构
GUO ZHENKUN (Autor:in) / WEN JIAQI (Autor:in) / HU GUOBIAO (Autor:in) / ZHANG JUN (Autor:in) / JIANG GUOQING (Autor:in)
23.05.2023
Patent
Elektronische Ressource
Chinesisch
The band gap of 1D viscoelastic phononic crystal
| British Library Online Contents | 2009
| British Library Online Contents | 2017
| British Library Online Contents | 2017