The skin comprises a surface layer, a buffer layer, a tension layer and a supporting layer which are sequentially stacked in the thickness direction, each of the buffer layer and the tension layer comprises at least one fold structure, and each fold structure comprises a plurality of bends so that the unfolding length of the fold structure can be larger than the length covered by the fold structure; and the unfolded length of the buffer layer is smaller than that of the tension layer. According to the scheme, when the folded structure is stressed, the pre-folded structure is unfolded, so that a larger area is used for bearing a local impact load, the influence of local dynamic change of the load on the skin is reduced, part of impact force is consumed through unfolding of the folded structure, the impact force needed by tearing of the skin is increased, and better impact resistance is achieved; the structure integrity of the skin can be better maintained, the energy absorption efficiency of the fuselage structure of the aircraft in the water forced landing process is guaranteed, the crash resistance of the aircraft in the water forced landing process is improved, and therefore the safety of passengers and equipment is guaranteed as much as possible.
本申请涉及一种蒙皮和飞行器,蒙皮包括沿厚度方向依次层叠的表层、缓冲层、张力层和支撑层,缓冲层和张力层均包括至少一个褶皱结构,褶皱结构包括多个弯折以使褶皱结构的展开长度大于褶皱结构所覆盖的长度,且缓冲层的展开长度小于张力层的展开长度。上述方案,当褶皱结构受力时,展开预先褶皱的结构,以用更多的面积承受局部冲击载荷,减少载荷局部动态变化对蒙皮的影响,还通过褶皱结构展开消耗部分冲击力,而增大蒙皮撕裂所需冲击力的大小,有更好的抗冲击性能,可更好地保持蒙皮的结构完整性,有利于保障飞行器水上迫降过程中机身结构的吸能效率,提高飞行器在水上迫降过程中抗坠毁能力,从而尽可能地保障乘员和设备的安全。
Skin and aircraft
蒙皮和飞行器
2024-01-05
Patent
Electronic Resource
Chinese
IPC: | B64C AEROPLANES , Flugzeuge |