The invention discloses a diesel engine vibration reduction base based on acoustic black hole nonlinear contact. The vibration reduction base comprises a base top plate, a base bottom plate, a bearing beam and an acoustic black hole structure. The bearing beam is arranged between the base top plate and the base bottom plate; at least one bearing beam is arranged between the base top plate and the base bottom plate; at least one bearing beam is connected with an acoustic black hole structure, and the acoustic black hole structure is parallel to the base top plate and the base bottom plate. The base bottom plate is provided with a conical contact structure, and the conical contact structure is arranged below the acoustic black hole structure; and the conical contact structure is in nonlinear contact with the acoustic black hole. The acoustic black hole structure is arranged on the bearing beam, vibration generated when the diesel engine works is transferred to the acoustic black hole structure, and damping is conducted; the acoustic black hole structure is in non-linear contact with the conical contact structure, low-frequency energy on the acoustic black hole structure is converted into high-frequency energy, the frequency of original vibration waves is changed, and the vibration reduction speed and effect are improved.

    本发明公开了一种基于声学黑洞非线性接触的柴油机减振基座,该减振基座包括基座顶板、基座底板、承重梁和声学黑洞结构;承重梁设于基座顶板与基座底板之间;基座顶板与基座底板之间至少设置有一块承重梁;至少有一块承重梁上连接有声学黑洞结构,声学黑洞结构与基座顶板、基座底板分别平行;基座底板上设有锥形接触结构,锥形接触结构设于声学黑洞结构下方;锥形接触结构与声学黑洞采用非线性接触。本发明通过在承重梁上设置声学黑洞结构,将柴油机工作时发生振动转移到声学黑洞结构上,进行减震;声学黑洞结构通过与锥形接触结构进行非线性接触,将声学黑洞结构上低频能量转化成高频能量,改变原有振动波的频率,提高减振的速度和效果。


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    Titel :

    Diesel engine vibration reduction base based on acoustic black hole nonlinear contact


    Weitere Titelangaben:

    一种基于声学黑洞非线性接触的柴油机减振基座


    Beteiligte:
    ZHANG CHUNYU (Autor:in) / PAN ZHENCHAO (Autor:in) / WANG ZHIHAO (Autor:in) / QIU XINYANG (Autor:in)

    Erscheinungsdatum :

    20.09.2022


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B63H Schiffsantrieb oder Steuerung der Schiffe , MARINE PROPULSION OR STEERING / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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