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A low-gravity simulated lunar soil for drilling

A low-gravity, lunar soil technology, applied in the field of deep space exploration, can solve problems such as the impact of drilling effects, and achieve high equivalence effects

Active Publication Date: 2021-12-07
BEIJING SATELLITE MFG FACTORY
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Problems solved by technology

[0003] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, to provide a low-gravity simulated lunar soil for drilling, to solve the problem of the impact of the low-gravity environment on the ground verification space on the drilling effect, and to effectively support space sampling to detect the ground Verification, which is of great engineering significance

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  • A low-gravity simulated lunar soil for drilling

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Embodiment Construction

[0018] Aiming at the deficiencies of the prior art, the present invention proposes a low-gravity simulated lunar soil for drilling, which solves the problem that the low-gravity environment of the ground verification space affects the drilling effect, and can effectively support space sampling and detection of ground verification, which has important engineering significance. The present invention aims at simulating lunar soil below 3mm, based on auger drilling, sampling and dense powder discharge characteristics; under the condition of ensuring the same gradation characteristics of simulated lunar soil, materials containing components contained in actual lunar soil but with lower density, such as SiO 2 , FeO, TiO and other materials are used as additional materials, and the density expansion is used to map the gravity environment expansion and contraction, so as to achieve the equivalent effect of drilling gravity under the condition of ensuring a small change in the friction c...

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Abstract

A kind of low-gravity simulated lunar soil for drilling. First, according to the chemical composition and rock composition of the actual lunar soil, rocks are selected as raw materials for the preparation of simulated lunar soil. Separate the crushed samples with different particle sizes, select the added raw materials, and sieve the added raw materials with different particle sizes, then select the crushed samples according to the particle size of the simulated lunar soil, add raw materials, configure the crushed samples, add raw materials to obtain samples, and Obtain the density of crushed samples and the density of added raw materials. Finally, according to the low gravity used for drilling, calculate the mass ratio of each component of crushed samples and added raw materials, and mix the crushed samples and added raw materials to simulate lunar soil.

Description

technical field [0001] The invention relates to the field of deep space exploration, in particular to a low-gravity simulated lunar soil for drilling. Background technique [0002] In the mission of sampling the environment of extraterrestrial celestial bodies such as the moon and Mars, the gravity environment is less than 1g. Due to the differences with the earth environment, it is often necessary to compensate for the influence of gravity environment differences on the sampling task in ground verification tests. Current low-gravity compensation methods generally include heavy object suspension, balloon suspension, air flotation platform, deep well drop method and aircraft flying parabola method, etc. Due to the discrete nature of the lunar soil, methods such as hanging heavy objects, hanging balloons, and air flotation platforms cannot be used; while the deep well drop method and the aircraft flying parabola method allow too short working time to meet the needs of long-te...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/28
CPCG01N1/28
Inventor 庞勇赖小明梁春祖姜生元王国欣王海元张鼐
Owner BEIJING SATELLITE MFG FACTORY
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