The invention discloses a bottom damping device for an airship propulsion support. The bottom damping device is installed between the bottom of an airship body and the airship propulsion support. Comprising an upper-layer rectangular frame structure, a lower-layer rectangular frame structure and a plurality of shock-absorbing dampers connected between the frame structures on the two sides. Wherein the bottom frame is formed by connecting four connecting rods end to end and is attached and fixed to a boat body. And the end parts of the top-layer frame connecting rods are connected through shock-absorbing dampers and are connected with a propeller bracket. Each connecting rod in the bottom frame is connected with the connecting rods located on the same side in the top layer frame through three shock absorption dampers. The shock-absorbing dampers are connected with the connecting rods in a spherical hinge mode, and three isosceles right triangles are formed between the three shock-absorbing dampers on the same side and the upper connecting rod and between the three shock-absorbing dampers on the same side and the lower connecting rod. Therefore, the force transmitted to the airship body by the propelling system can be reduced, vibration suppression of the airship propelling system in multiple directions is achieved, damping and rigidity of the damping device in different directions can be adjusted according to the dynamic characteristics of the airship propelling system and the airship body, and resonance is avoided.

    本发明公开一种飞艇推进支架底部减振装置,安装于艇体底部与飞艇推进支架之间;包括上下两层矩形框架结构以及两侧框架结构间连接的多根减震阻尼器。其中,底框为四根连杆首尾相接构成,贴合固定于艇身。顶层框架连杆端部间通过减震阻尼器连接,连接推进器支架。上述底框中每根连杆通过三个减震阻尼器与顶层框架中位于同侧的连杆间相连;且上述各减震阻尼器与连杆间的连接方式均采用球铰连接,同侧三个减震阻尼器与上下连杆间形成三个等腰直角三角形。由此通过本发明可减小推进系统传递到艇体上的力,实现飞艇推进系统多个方向上的抑振,可根据飞艇推进系统与艇体的动力学特性,调节减振装置不同方向的阻尼和刚度,避免发生共振。


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    Title :

    Airship propulsion support bottom damping device


    Additional title:

    一种飞艇推进支架底部减振装置


    Contributors:
    TAO GUOQUAN (author) / LIU BOYU (author)

    Publication date :

    2025-04-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64B LIGHTER-THAN-AIR AIRCRAFT , Luftfahrzeuge leichter als Luft / F16F SPRINGS , Federn



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