The invention discloses a gradient energy absorption device of an embedded tubular honeycomb filling thin-wall structure. The gradient energy absorption device comprises thin-wall tubes and honeycomb blocks. Filling pipes are embedded in the honeycomb blocks, and the stepped energy absorption effect is achieved through the difference of the materials and the number of the filling pipes. Meanwhile, the filling pipes are embedded in the holes of the honeycomb blocks, in the compression process of the honeycomb blocks, all the cell elements are folded and deformed, a large number of hexagonal regular gaps are still kept in the honeycomb blocks after complete densification, the filling pipes are embedded into the honeycomb blocks, the gaps can be fully utilized, and meanwhile, according to the coupling effect of the filling pipes and the honeycomb cell elements, the overall energy absorption capacity of the embedded structure is larger than the sum of the energy absorption capacity of the honeycomb blocks and the energy absorption capacity of the filling pipes, and therefore the overall energy absorption performance of the structure can be effectively improved. Moreover, due to the fact that the lengths, the materials, the number and the arrangement modes of the filling pipes in the honeycomb blocks are different, the energy absorption capacities of the filling pipes in the cross sections are different, and the stepped energy absorption effect is further refined.
本发明公开了一种内嵌管式蜂窝填充薄壁结构的梯度吸能装置,其包括:薄壁管和蜂窝块。蜂窝块内嵌填充管,利用填充管的材质和数量上的差异形成阶梯吸能效果。同时,在蜂窝块的孔洞中嵌有填充管,蜂窝块在压缩过程中,各胞元折叠变形,在完全致密化后内部仍然保持了大量六边形规则空隙,将填充管嵌入蜂窝块,能够充分利用这些空隙,同时根据填充管与蜂窝胞元的耦合作用,内嵌结构整体的吸能能力大于蜂窝块吸能能力与填充管吸能能力的总和,从而能够有效提升结构整体的吸能性能。不仅如此,由于各蜂窝块内填充管的长度、材质、数量和排布方式不同,导致各横切面内填充管的吸能能力存在差异,从而进一步细化阶梯吸能效果。
Gradient energy absorption device of embedded tubular honeycomb filling thin-wall structure
一种内嵌管式蜂窝填充薄壁结构的梯度吸能装置
2021-11-12
Patent
Elektronische Ressource
Chinesisch
IPC: | B61F Untergestelle für Schienenfahrzeuge, z.B. Fahrgestellrahmen, Drehgestelle oder Anordnungen der Radsätze , RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES |
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