The cabin inner plate noise reduction structure based on damping shock absorption is characterized in that the outer side of a cabin inner plate is connected with an outer-layer mask, ribs are arranged between the outer-layer mask and the cabin inner plate and comprise vertical ribs and transverse reinforcing ribs, the vertical ribs are transversely arranged on the inner side surface of the cabin inner plate at equal intervals, and the transverse reinforcing ribs are arranged on the inner side surface of the cabin inner plate at equal intervals. Vertical ribs are arranged on the outer layer mask, damping grooves are formed in the surfaces of the vertical ribs, a plurality of vertical ribs are transversely arranged on the surfaces of the vertical ribs at equal intervals in the damping grooves, and guide edges are arranged on the bottom face and the two sides of each damping groove. Vibration radiation of the cabin inner plate can be efficiently reduced through the damping sliding blocks, so that vibration and noise reduction in the cabin are reduced, and the sealing space is formed between the outer mask and the cabin inner plate, so that noise can be effectively isolated.

    本文提出了一种基于阻尼减震的机舱内板降噪结构,机舱内板的外侧与外层蒙板相连,外层蒙板和机舱内板之间设有筋条,所述的筋条包括竖向筋条和横向加强筋,所述的竖向筋条横向等距的设有在机舱内板内侧表面,竖向筋条表面设有阻尼槽,所述的阻尼槽横向等距的间隔若干竖向筋条的设在竖向筋条表面,阻尼槽的底面和两侧均设有导向沿,通过将原本直接将机舱内板直接连接至外层蒙板上的筋条的形式,改进为在筋条上设置阻尼滑块,通过阻尼滑块能够高效的降低机舱内板的震动辐射,从而降低机舱内部的震动降噪,而外层蒙板和机舱内板之间设有密封空间,也能做到有效隔绝噪音。


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    Title :

    Cabin inner plate noise reduction structure based on damping shock absorption


    Additional title:

    一种基于阻尼减震的机舱内板降噪结构


    Contributors:
    YANG JIAN (author) / LEE SUNG HAENG (author) / HE DONGSHENG (author) / WENG CHANGYAN (author)

    Publication date :

    2024-04-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge / F16F SPRINGS , Federn



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