An automobile crumple type energy absorption steering column of a gradient cellular structure belongs to the technical field of automobiles, and comprises a lower steering shaft, a lower steering column tube, an energy absorption device, an upper steering column tube and an upper steering shaft. The energy absorption device comprises a ladder three-dimensional gradient negative poisson ratio cellular structure, the cellular structure is formed by arranging a plurality of layers of three-dimensional negative poisson ratio cellular structures in the vertical direction in a gradient mode and connecting the three-dimensional negative poisson ratio cellular structures end to end, and the densities of the layers are different. The cellular structures have the characteristic of axial compression-shrinkage, the rigidity of the material is improved when the cellular structure is subjected to the action of axial force, and the automobile steering C-pillaran absorb more energy when collision occurs. And from the beginning of crumple to the end of energy absorption stop of the structures, the displacement of structure contraction in the whole process is very large, and a larger living space can be provided for a driver. And the torque can be transmitted more efficiently. In addition, due to the introduction of the gradient concept, the manufacturing cost can be further reduced, and the energy absorption characteristic and the deformation characteristic can be more effectively changed.

    一种梯度多胞结构的汽车溃缩式吸能转向柱,属于汽车技术领域,包括下转向轴、下转向柱管、吸能装置、上转向柱管、上转向轴。吸能装置中包括梯三维梯度负泊松比多胞结构,该多胞结构由若干层三维负泊松比多胞结构在竖直方向梯度排列且首尾相连而成,每层之间密度不同。该多胞结构具有轴向压缩‑收缩的特性,当其受到轴向力作用时材料刚度提高,在发生碰撞时,汽车转向柱将能够吸收更多的能量。并且该结构从开始溃缩到最后吸能停止,整个过程结构收缩的位移很大,可以给驾驶员提供更大的生存空间。且能够更高效地传递扭矩。另外,由于引进梯度概念,可以进一步降低制造成本,可以更加有效地改变能量吸收特性和变形特征。


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    Titel :

    Automobile crumple type energy absorption steering column with gradient cellular structure


    Weitere Titelangaben:

    一种梯度多胞结构的汽车溃缩式吸能转向柱


    Beteiligte:
    ZHANG WEI (Autor:in) / SUN HAO (Autor:in) / HOU BOWEN (Autor:in) / TAN LONGFEI (Autor:in)

    Erscheinungsdatum :

    2020-07-03


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B62D MOTOR VEHICLES , Motorfahrzeuge



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