The invention belongs to the technical field of aircraft structures, and particularly relates to a negative Poisson's ratio deformable flexible grating for a flap or aileron gap. Comprising a first area, a second area and a third area which are sequentially connected, and the first area is a wing connecting area and used for being connected with a wing; the second area is a negative Poisson's ratio grid area, the second area comprises a plurality of unit cell structures which are regularly arranged, and each unit cell structure is composed of two hollow isosceles trapezoids with short edges in butt joint; the third area is a flap or aileron connecting area and is used for being connected with a flap or an aileron; the length of an integral structure formed by the first area, the second area and the third area is consistent with the length of a flap or aileron gap, and the width of the second area is consistent with the width of the flap or aileron gap. According to the invention, by utilizing the specific pulling and expanding characteristics of the negative Poisson's ratio deformable flexible grid, the problems of warping, shrinking and the like of the grid in the existing form in the deformation process are solved.
本申请属于飞行器结构技术领域,特别涉及一种用于襟翼或副翼缝隙的负泊松比可变形柔性格栅。包括:依次连接的第一区域、第二区域以及第三区域,其中,所述第一区域为机翼连接区,用于与机翼连接;所述第二区域为负泊松比格栅区,所述第二区域包括多个规则排布的单胞结构,所述单胞结构由两个镂空的短边对接的等腰梯形构成;所述第三区域为襟翼或副翼连接区,用于与襟翼或副翼连接;所述第一区域、所述第二区域以及所述第三区域构成的整体结构的长度与襟翼或副翼缝隙的长度一致,所述第二区域的宽度与襟翼或副翼缝隙的宽度一致。本申请利用负泊松比可变形柔性格栅特有的拉胀特性,解决现有形式格栅在变形过程中会产生翘曲,萎缩等现象。
Negative Poisson's ratio deformable flexible grating for flap or aileron gap
一种用于襟翼或副翼缝隙的负泊松比可变形柔性格栅
2022-07-22
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
NEGATIVE POISSON'S RATIO MATERIALS FOR PROPELLERS AND TURBINES
Europäisches Patentamt | 2024
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