The invention discloses an underwater cavity torrent noise suppression device based on a deployable flexible structure, and belongs to the technical field of hydrodynamic noise control, and the underwater cavity torrent noise suppression device comprises a first telescopic mechanism fixed in an opening cavity, a second telescopic mechanism fixed on the first telescopic mechanism, a deployable flexible mechanism and a filling mechanism, the extensible flexible mechanism comprises an extension cavity formed in the free liquid filling space, and the extension cavity is fixedly connected with the first telescopic mechanism and the second telescopic mechanism. And the filling mechanism is communicated with the telescopic cavity. The invention provides an underwater cavity torrent noise suppression device based on a deployable flexible structure, which can actively fill a free liquid filling space in an open pore cavity without changing the hydrodynamic appearance of the open pore cavity, so that external hydrodynamic noise can be avoided, the hydrodynamic performance of the underwater open pore cavity is guaranteed, and the water quality of the open pore cavity is improved. And the feedback path of the flow-induced oscillation of the water perforated cavity can be destroyed from the source, the resonance of the flow-induced cavity is avoided, and the flow-induced noise of the water perforated cavity is obviously inhibited.

    本发明公开了一种基于可展柔性结构的水中空腔激流噪声抑制装置,属于水动力噪声控制技术领域,包括:固定在开孔腔内的第一伸缩机构、固定在第一伸缩机构上的第二伸缩机构,可展柔性机构和填充机构,该可展柔性机构包括设置在自由充液空间中伸展腔体,伸展腔体分别与第一伸缩机构和第二伸缩机构固定连接;填充机构和伸缩腔体相连通。本发明提供了一种基于可展柔性结构的水中空腔激流噪声抑制装置,能够在不改动开孔腔水动力外形的同时主动填充开孔腔内的自由充液空间,不仅能够避免产生而外水动力噪声,保障水中开孔腔的水动力性能,而且能够从根源上破坏水中开孔腔流激振荡的反馈路径,避免流激空腔共振发生,显著抑制水中开孔腔流激噪声。


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    Title :

    Underwater cavity torrent noise suppression device based on deployable flexible structure


    Additional title:

    一种基于可展柔性结构的水中空腔激流噪声抑制装置


    Contributors:
    XU RONGWU (author) / ZHANG WENWEN (author) / CUI LILIN (author) / CHEN JINGBIN (author) / YU WENJING (author) / WU SHIJI (author)

    Publication date :

    2023-08-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS , Angriffs- oder Verteidigungsanordnungen auf Schiffen



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