The invention discloses a gradient multi-cell automobile energy-absorbing buffer device which comprises a gradient multi-cell energy-absorbing pipe (2). The gradient multi-cell energy-absorbing pipe (2) comprises a plurality of cells, a plurality of side walls are enclosed to form each cell, and the thickness of each side wall is changed in a gradient manner, namely, the thickness of each side wall is gradually decreased by a preset gradient from the edge of the side wall to the middle of the side wall. Light metal materials can be extruded to form an energy-absorbing buffer structure. A multi-cell structure is arranged on the cross section of the gradient multi-cell automobile energy-absorbing buffer device, the deformation mode of the structure is more stable as compared with a traditional single pipe energy-absorbing structure, and energy-absorbing efficiency is higher. Compared with an equal-thickness multi-cell structure, a portion making a great contribution to structural plastic deformation performance is effectively enhanced by gradient thickness change, and a portion making a small contribution to deformation performance is weakened. The gradient multi-cell automobile energy-absorbing buffer device serves as a direct impact energy-absorbing structure for an automobile, direct impact safety of the automobile can be greatly enhanced, and automobile passenger casualties are reduced.


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    Title :

    Multi-cell automobile energy-absorbing buffer device


    Contributors:
    ZHENG GANG (author) / SUN GUANGYONG (author) / LI GUANGYAO (author) / PANG TONG (author)

    Publication date :

    2015-09-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    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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