The invention relates to the technical field of railway vehicles, in particular to a sound insulation board and a railway vehicle, the sound insulation board comprises a first board body and a noise reduction component, the first board body is provided with a mounting hole, the noise reduction component is arranged in the mounting hole, at least two cavities are formed in the noise reduction component, and the multiple cavities are sequentially stacked in the axial direction of the mounting hole. The noise reduction component and the mounting hole in the first plate body are mounted in a matched mode to form the sound insulation plate based on the plate cavity resonance noise elimination principle, and noise transmission is reduced. According to the sound insulation board formed by matching the first board body and the noise reduction component, the space occupation amount needed by the arrangement of the noise reduction component is reduced, meanwhile, the low-frequency sound insulation index in the sound insulation board can be improved, the structural rigidity and strength of the sound insulation board are not affected, the lightweight sound insulation requirement is met, and the limitation of the mass law is broken through; and the contradiction between low-frequency noise reduction performance improvement and light weight requirements in the design process of the sound insulation plate is solved.

    本发明涉及轨道车辆技术领域,尤其涉及一种隔音板及轨道车辆,隔音板包括第一板体和降噪部件,第一板体设有安装孔,降噪部件设置于安装孔中,降噪部件的内部设有至少两个空腔,多个空腔沿安装孔的轴向依次层叠设置。通过降噪部件与第一板体上的安装孔进行配合安装形成板腔共振消声原理的隔音板,降低噪声传递。第一板体与降噪部件的配合设置组成的隔音板,在减少降噪部件设置所需的空间占用量的同时,还能够提高隔音板中低频隔声量,不影响隔音板的结构刚度和强度,实现轻量化隔音要求,打破了质量定律的限制,解决了隔音板设计过程中存在的低频降噪性能提升与轻量化要求矛盾。


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    Title :

    Sound insulation board and railway vehicle


    Additional title:

    隔音板及轨道车辆


    Contributors:
    WANG XINYING (author) / JIAO JINGHAI (author) / SHI QILONG (author) / XU JIANLE (author) / GUO JIANQIANG (author)

    Publication date :

    2024-08-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES



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