The invention relates to an airplane underfloor collision energy absorption groove type inclined strut structure. The airplane underfloor collision energy absorption groove type inclined strut structure comprises a groove type strut and a groove type connector connected with the groove type strut in a sleeving mode. A plurality of strut fixing holes are formed in the upper end of the groove-shapedstrut, the groove-shaped strut is fixedly connected with a floor beam through strut fixing pieces, strut hinge holes are formed in the middles of the strut fixing holes, and the strut hinge holes arehinged to the floor beam through strut hinge pieces; a plurality of connector fixing holes are formed in the lower end of the groove-shaped connector, the groove-shaped connector is fixedly connectedwith a machine body frame through a connector fixing piece, and a connector hinge hole is formed in the middle of each connector fixing hole and hinged to the machine body frame through a connector hinge piece. According to the invention, the overturning crushing connector is adopted to trigger crushing of the groove-shaped composite material strut, a scheme for damaging a fastener when the inclined strut is impacted is provided, and after the crushing, the strut only bears an axial load and cannot be broken off due to bending, so that good energy absorption is realized.
本发明涉及一种飞机地板下碰撞吸能槽型斜支柱结构,包括槽型支柱以及与所述槽型支柱相套接的槽型接头;所述槽型支柱上端设有若干支柱固接孔,并通过支柱固接件与地板梁固接,所述支柱固接孔的中间设有一支柱铰接孔,并通过支柱铰接件与地板梁铰接;所述槽型接头下端设有若干接头固接孔,并通过接头固接件与机身框固接,所述接头固接孔的中间设有一接头铰接孔,并通过接头铰接件与机身框铰接。本发明采用翻转压溃的接头来触发槽型复合材料支柱的压溃,提出了使倾斜支柱受冲击下的紧固件破坏方案,当压溃产生后,支柱只承受轴向载荷,不会由于弯曲而折断,实现良好的吸能。
Aircraft underfloor collision energy absorption groove type inclined strut structure
一种飞机地板下碰撞吸能槽型斜支柱结构
2020-07-10
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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