The invention discloses unmanned aerial vehicle damping undercarriages based on a non-Newtonian fluid. The undercarriages are symmetrically arranged at a bottom of an unmanned aerial vehicle and eachundercarriage comprises a damping assembly and a springback buffer assembly, the springback buffer assembly comprises sleeves symmetrically arranged on the damping assembly and telescopic columns, oneend of each telescopic column is located in the corresponding sleeve, the other end of each telescopic column is located outside the corresponding sleeve, the telescopic columns can move in the axialdirection of the sleeves, and containing cavities are formed by the telescopic columns and inner cavities of the sleeves and filled with the non-Newtonian fluid. A non-Newtonian fluid mechanics principle is utilized; the springback buffer assembly is arranged; after each damping assembly is in contact with the ground and is compressed, the damping assembly rebounds to generate an impact force oneach sleeve; then when the telescopic column located in each sleeve is subjected to the impact force of the sleeve, the telescopic column located in the sleeve and the non-Newtonian fluid generate a shearing force so that a blocking force of the non-Newtonian fluid is increased, and a part of the impact force borne by the telescopic column is counteracted; and then a springback height of the unmanned aerial vehicle is reduced, and landing stability and safety of the unmanned aerial vehicle are improved.
本发明公开一种基于非牛顿流体的无人机减震起落架,对称设置在无人机的底部,其包括减震组件和回弹缓冲组件,回弹缓冲组件包括对称设置在减震组件上的套筒和一端部位于套筒内、另一端部位于套筒外的伸缩柱,伸缩柱可沿着套筒的轴向移动,并与套筒的内腔形成容纳腔室,容纳腔室内填充有非牛顿流体。利用非牛顿流体力学原理,通过设置回弹缓冲组件,在减震组件与地面接触发生压缩后反弹对套筒产生冲击力后,在位于套筒内的伸缩柱受到套筒的冲击力时,位于套筒内的伸缩柱与非牛顿流体产生剪切力,使得非牛顿流体的阻滞力增大,抵消伸缩柱所受到的部分冲击力,进而减小无人机的回弹高度,提高无人机降落的平稳性和安全性。
Unmanned aerial vehicle damping undercarriages based on non-Newtonian fluid
一种基于非牛顿流体的无人机减震起落架
2020-09-15
Patent
Elektronische Ressource
Chinesisch
IPC: | B64C AEROPLANES , Flugzeuge |
Ground integrated test apparatus for UAV (unmanned aerial vehicle) undercarriages
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