The invention discloses a composite energy absorption device, which comprises a sleeve, a base and an upper cover, the upper cover is connected to an energy absorption front end of the sleeve, the base is connected to an energy absorption rear end of an energy-absorbing sleeve, and the sleeve is filled with a honeycomb body; a plurality of spiral guide grooves which spirally extend in parallel around the central axis are formed in the wall of the sleeve, and notches which are connected with the spiral guide grooves in a one-to-one correspondence mode and have the same spiral angle are formed in the positions, corresponding to a pipe opening of the sleeve energy absorption rear end, to which the spiral guide grooves extend. The base is provided with a cone-frustum-shaped part, a plurality of blunt cutting edges are arranged on the circumference of the small-diameter end of the cone-frustum-shaped part at intervals, and when the sleeve is connected with the base, the blunt cutting edges are inserted into the notches in the one-to-one correspondence mode. The invention has the following advantages: the energy absorption process is stable, the specific energy absorption is high, and the collision peak force is small.

    本发明公开了一种复合吸能装置,它包括套管、底座及上盖,上盖连接在套管吸能前端上,该底座连接在吸能套管吸能后端上,套管内填充有蜂窝体;套管壁上设有若干绕中心轴向平行盘旋延伸的螺旋导槽,并在每条螺旋导槽延伸至的套管吸能后端管口对应位置处开有与螺旋导槽一一对应相接且具有相同螺旋角的缺口,该底座具有圆锥台状部分并在该圆锥台状部分的小径端周长上间隔设有若干钝切割刃,该套管与该底座相接时,钝切割刃一一对应地插接在该缺口处。它具有如下优点:吸能过程稳定、比吸能高、碰撞峰值力小。


    Access

    Download


    Export, share and cite



    Title :

    Composite energy absorption device


    Additional title:

    一种复合吸能装置


    Contributors:
    KONG HAOYUE (author) / ZHANG YONG (author) / LI JIXIANG (author) / LIU XIAOYING (author) / ZHANG FENG (author)

    Publication date :

    2021-07-13


    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



    Composite energy absorption device for collision and application

    ZHANG YONG / GE PINGZHENG / LU MINGHAO et al. | European Patent Office | 2015

    Free access


    Energy absorption of composite materials

    Amodio,D. / Broggiato,G.B. / Campana,F. et al. | Automotive engineering | 1999


    Energy absorption in pultrusion composite profiles

    Jimenez,M.A. / Larrode,E. / Castejon,L. et al. | Automotive engineering | 1998


    Energy absorption of braided composite tubes

    Beard,S.J. / Chang,F.K. / Stanford Univ.,US | Automotive engineering | 2002