The invention discloses a superstructure buoyant raft plate type raft frame with a low-frequency vibration reduction characteristic and a preparation method thereof, belongs to the field of vibration control, and can achieve a low-frequency vibration reduction effect by taking the structure as a middle raft frame in a double-layer buoyant raft vibration isolation system. The plate type raft frame of the superstructure buoyant raft comprises a resonance unit, a vertical rod, an upper panel and a lower panel, wherein the resonance unit consists of cylindrical rubber and a cylindrical metal mass block; the upper panel comprises a periodic round hole; an orthogonal short beam is additionally arranged on the lower panel after the hole is formed in the lower panel; the super-structure buoyant raft plate type raft frame has a local resonance type band gap, low-frequency elastic wave propagation can be effectively restrained, and vibration restraining of a specific frequency band can be achieved through specific design; in addition, the rod system lattice sandwich structure has excellent bearing capacity, so that the structure integrates high bearing performance and low-frequency vibration suppression performance.

    本发明公开了一种具有低频减振特性的超结构浮筏板式筏架及其制备方法,属于振动控制领域,将该结构作为双层浮筏隔振系统中的中间筏架能够达到低频减振效果。本发明超结构浮筏板式筏架包括:圆柱橡胶和圆柱金属质量块构成的共振单元、竖直杆、含周期圆孔的上面板以及开孔后附加正交短梁的下面板;所述超结构浮筏板式筏架具有局域共振型带隙,可以有效抑制低频弹性波传播,通过特定设计可以实现特定频段的振动抑制;另外这种杆系点阵夹层结构具有优越的承载能力,使本发明结构集高承载与低频振动抑制性能于一体。


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    Title :

    Super-structure buoyant raft plate type raft frame with low-frequency vibration reduction characteristic and preparation method of super-structure buoyant raft plate type raft frame


    Additional title:

    一种具有低频减振特性的超结构浮筏板式筏架及其制备方法


    Contributors:
    AN XIYUE (author) / YUAN XINFENG (author) / FAN HUALIN (author) / HE WEIPING (author) / LAI CHANGLIANG (author) / SUN GUOQING (author) / HOU XUANXUAN (author)

    Publication date :

    2024-06-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS , Angriffs- oder Verteidigungsanordnungen auf Schiffen / F16F SPRINGS , Federn



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