The invention relates to the technical field of acoustics, in particular to a manufacturing method of an acoustic liner structure and the acoustic liner structure. The acoustic lining structure comprises a first panel, an embedded tube plate, a surrounding wall structure and a second panel which are sequentially arranged in the thickness direction of the acoustic lining structure, the embedded tube plate and the first panel are matched to form a plurality of embedded tubes, the second panel is a through hole panel, and therefore the first panel, the embedded tube plate, the surrounding wall structure and the second panel are matched to form a plurality of acoustic elements. Each acoustic element is provided with a plurality of Helmholtz cavities arranged side by side, the spaced Helmholtz cavities are communicated through embedded pipes to form an element, other Helmholtz cavities which are communicated through or not through the embedded pipes form another element, and the silencing capacity of the acoustic liner structure can be enhanced through the strong coupling effect and the weak coherent coupling effect in different acoustic elements. According to the acoustic liner structure and the manufacturing method thereof, under the condition that the thickness of the acoustic liner structure is limited, the low-frequency, broadband and efficient noise elimination characteristics can be achieved, the manufacturing process is clear, and operability is high.
本发明涉及声学技术领域,尤其涉及一种声衬结构的制造方法及声衬结构。所述声衬结构包括沿声衬结构的厚度方向依次设置的第一面板、内嵌管板、围壁结构和第二面板,内嵌管板与第一面板配合形成若干内嵌管,第二面板为通孔面板,从而使得第一面板、内嵌管板、围壁结构和第二面板配合形成若干声学元件,声学元件具有若干并排设置的亥姆霍兹腔,间隔的亥姆霍兹腔通过内嵌管连通构成一基元,其它通过或未通过内嵌管连通的亥姆霍兹腔构成另一基元,不同的声学元件内的强耦合效应及弱相干耦合效应能够增强声衬结构的消声能力。所述声衬结构及其制造方法能够在声衬结构厚度受限的情况下,实现低频、宽带、高效的消声特性,且制造流程清晰,可操作性强。
Manufacturing method of acoustic liner structure and acoustic liner structure
一种声衬结构的制造方法及声衬结构
02.05.2025
Patent
Elektronische Ressource
Chinesisch
IPC: | F02C Gasturbinenanlagen , GAS-TURBINE PLANTS / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT / F04D Strömungsarbeitsmaschinen , NON-POSITIVE-DISPLACEMENT PUMPS / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen |
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