The invention discloses an automobile chassis vibration and noise reduction device based on an acoustic black hole effect, which belongs to the technical field of vibration and noise reduction. The automobile chassis vibration and noise reduction device based on the acoustic black hole effect comprises a plate structure, acoustic black hole structures and a nonlinear energy trap; the plate structure is a part of an automobile chassis; a plurality of acoustic black hole structures are cut on the plate structure; the distance between the upper surface and the lower surface of each acoustic black hole structure is gradually increased from the central axis of the acoustic black hole structure to the outer edge; and the lower portion of each acoustic black hole structure is connected to the nonlinear energy trap. The beneficial effects of the invention are as follows: the automobile chassis vibration and noise reduction device based on the acoustic black hole effect has a simple overall structure, has a good vibration energy gathering effect in the high, medium and low frequency bands, and can realize efficient gathering of vibration energy, which can not only meet the strength requirements of the acoustic black hole structures, but also realize efficient energy gathering and collection, and achieve a good vibration and noise reduction effect.

    一种基于声学黑洞效应的汽车底盘减振降噪装置,属于减振降噪技术领域,该减振降噪装置,包括板件结构、声学黑洞结构和非线性能量阱,板件结构为汽车底盘的一部分,板件结构上剪裁有多个声学黑洞结构,声学黑洞结构的上、下表面之间的距离从声学黑洞结构的中轴线向外边缘逐渐增加,每个声学黑洞结构的下方连接非线性能量阱,本发明的有益效果是,该减振降噪装置整体结构简单,可以在高、中、低频段有良好的振动能聚集效果,能够实现振动能量的高效聚集,既能满足声学黑洞结构的强度需求,又能实现高效的能量聚集和采集,达到良好的减振降噪效果。


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    Title :

    Automobile chassis vibration and noise reduction device based on acoustic black hole effect


    Additional title:

    一种基于声学黑洞效应的汽车底盘减振降噪装置


    Contributors:
    TANG YE (author) / XU GANG (author) / WANG HAI (author) / ZHANG HUJIE (author) / ZHENG YANCHANG (author) / YANG CHUNLAI (author) / XU MANMAN (author)

    Publication date :

    2021-08-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    F16F SPRINGS , Federn / B62D MOTOR VEHICLES , Motorfahrzeuge / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / H02N Elektrische Maschinen, soweit nicht anderweitig vorgesehen , ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR



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