Cat-like structure lunar lander based on variable stiffness buffer and landing method of cat-like structure lunar lander

Abstract

The invention provides a cat-shaped moon lander based on a variable-stiffness buffer and a landing method thereof. The lander comprises a lander body, a thighbone cat-leg-imitating structure, the variable-stiffness buffer, a tibia cat-leg-imitating structure, a metatarsal bone cat-leg-imitating structure, a buffer spring, a cat-leg-imitating pad, a shoulder blade cat-leg-imitating structure, a humerus cat-leg-imitating structure and a radius cat-leg-imitating structure. When the cat-foot-imitating pad, the metatarsal-bone cat-leg-imitating structure and the radius cat-leg-imitating structure touch the ground, all the structures drive the variable-rigidity buffer to work, and buffering and speed reduction of the lander are achieved through pulling/pressing movement of the variable-rigidity buffer. Meanwhile, in the landing process, the buffering force and the overall attitude of the lander are controlled by adjusting the rigidity of the variable-rigidity buffer, and finally safe and stable landing of the lander is achieved. The invention can be widely applied to various spaceflight landers, and has the advantages of good buffer effect, wide landing range, controllable landing attitude and the like.

Description

technical field [0001] The invention relates to the technical field of aerospace, in particular to a cat-like configuration lunar lander based on variable stiffness buffers and a landing method thereof. Background technique [0002] At the end of my country's three-step unmanned lunar exploration plan of "circling, falling, and returning", the basic idea of ​​building an unmanned lunar scientific research station was put forward. At present, the landing buffer mechanism used in the mature passive soft landing technology is mostly locked before landing, and cannot be adjusted according to the fluctuation of the lunar surface, nor can the buffer force during the landing process be adapted to the change of the impact load. Therefore, it is difficult to meet the requirements for safe landing of future lunar exploration. It is necessary to break through the active soft landing method, and actively adjust the buffer force performance according to the impact mechanical characterist...

AI Technical Summary

Problems solved by technology

At present, the landing buffer mechanism adopted by the mature passive soft landing technology is mostly locked before landing, and cannot be adjusted according to the fluctuation of the lunar surface, and the size of the buffer force during the landing process cannot be adapted to the change of the impact load. Therefore, it is difficult to meet the safety landing requirements of future lunar exploration. It is necessary to break through the active soft landing method and actively adjust the buffer force performance according to the impact mechanical characteristics during the landing process to ensure the stability of the equipment attitude.

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