The invention discloses a fluid-solid coupling four-stage collision energy absorption device. The device is composed of a three-dimensional energy absorption area, a folding energy absorption area anda fluid energy absorption area which are arranged in a crossed mode from top to bottom, wherein the three-dimensional energy absorption area is a thin-wall pipe fitting with a polygonal section; thefolding energy absorption area forms circumferentially arranged rotary folding concave corners through crease lines in combination with a rotary folding mode; the fluid energy absorption area is composed of a cover plate, a supporting plate, a cylinder, an inlet valve, a pressure release valve and a pressing plate; a cavity is formed between the cylinder and the pressing plate and filled with gasor hydraulic oil, the inlet valve and the pressure release valve are arranged on the cylinder, and the supporting plate is connected with the pressing plate and the cover plate. By means of multi-stage buffering of the collision energy absorption device, the initial peak force generated in the collision process can be effectively reduced, and it can be guaranteed that the collision energy absorption device has the high energy absorption rate.

    本发明公开了一种流固耦合四级碰撞吸能装置,该装置由立体吸能区、折叠吸能区和流体吸能区采用至上而下交叉排列的方式组成;立体吸能区为具有多边形截面的薄壁管件;折叠吸能区通过折痕纹路并结合旋转折叠方式形成圆周排列的回转式折叠凹角;流体吸能区由盖板、支撑板、筒体、进口阀、泄压阀和压板组成;筒体与压板之间形成腔室,腔室内填充气体或液压油,筒体上设置有进口阀和泄压阀,支撑板连接压板和盖板;本发明通过碰撞吸能装置的多级缓冲不但能有效降低碰撞过程中产生的初始峰值力,而且还能保证碰撞吸能装置有较高的能量吸收率。


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    Title :

    Fluid-solid coupling four-stage collision energy absorption device


    Additional title:

    一种流固耦合四级碰撞吸能装置


    Contributors:
    LIU XIN (author) / LIU XIANG (author) / GONG MIN (author)

    Publication date :

    2020-09-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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