The invention relates to an energy absorption structure of an aircraft cargo hold floor lower structure. The energy absorption structure comprises a hollow tubular upright post, and the tubular upright post comprises an upper end part and a lower end part opposite to the upper end part along the longitudinal extension direction of the tubular upright post. The tubular upright post comprises a planar part and an arc-shaped part. The planar part is configured to enable the upper end part to be attached and fixed to a web plate of a cargo compartment floor cross beam through a fastener and enablethe lower end part to be attached and fixed to a web plate of a fuselage frame in the assembling process, and the connecting strength of the tubular upright post at the upper end portion is larger than that of the tubular upright post at the lower end art. The energy absorption structure is good in energy absorption effect and simple in structure.
本发明涉及一种飞机货舱地板下部结构的吸能结构,该吸能结构包括中空的管状立柱,管状立柱包括上端部以及沿其纵向延伸方向与上端部相对的下端部。所述管状立柱包括平面状部分和弧形部分。其中,平面状部分被构造成能够在装配时通过紧固件将上端部贴合固定在货舱地板横梁的腹板,将下端部贴合固定在机身框的腹板上,并且所述管状立柱在上端部的连接强度大于在下端部的连接强度。本发明的吸能结构吸能效果良好,且结构简单。
Energy absorption structure of airplane cargo hold floor lower structure
一种飞机货舱地板下部结构的吸能结构
2021-02-19
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |
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