The invention provides a Yoshimura type hollow-out energy-absorbing basic unit and a gradient energy-absorbing structure, and belongs to the technical field of design and manufacturing of automobile body structures. The bottom surface of the Yoshimura type hollow-out energy-absorbing basic unit is provided with at least three edges which are sequentially connected end to end; the Yoshimura type hollow-out energy-absorbing basic unit is provided with at least six basic polygons which are sequentially connected end to end in the circumferential direction, a hollow-out structure is arranged in the middle of each basic polygon, the position, used for being connected with the adjacent basic polygon, of each basic polygon is arranged to be a crease position, and the thickness of the crease position is larger than that of the boundary of each hollow-out structure. The Yoshimura type hollow energy absorption basic unit and the gradient energy absorption structure have the beneficial effects that the deformation resistance is higher, the energy absorption effect is better, and the comprehensive crashproof performance of the whole energy absorption structure is greatly improved; and meanwhile, the materials can be customized, the materials can be used up, and the manufacturing cost is reduced.

    本发明提供了一种Yoshimura式镂空吸能基础单元及梯度吸能结构,属于汽车车身结构设计制造技术领域,所述Yoshimura式镂空吸能基础单元的底面设置有至少三个依次首尾相连的边,所述Yoshimura式镂空吸能基础单元沿周向设置有至少6个依次首尾相连的基础多边形,基础多边形的中部设置有镂空结构,基础多边形上用来与相邻基础多边形连接的位置处设置为折痕位置,且折痕位置处的厚度大于镂空结构边界处的厚度。本发明的有益效果在于,本发明所提供的Yoshimura式镂空吸能基础单元及梯度吸能结构的变形抗力更强,吸能效果更优,且整个吸能结构的综合耐撞性能得到极大提升;同时本发明还能够实现材料的“量身定制”、“材尽其用”,降低制造成本。


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    Title :

    Yoshimura type hollow energy absorption basic unit and gradient energy absorption structure


    Additional title:

    一种Yoshimura式镂空吸能基础单元及梯度吸能结构


    Contributors:
    ZHANG HUILE (author) / CHEN TIANLI (author) / LI SHIKANG (author) / WANG WEI (author)

    Publication date :

    2024-01-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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