An unmanned autonomous adaptive drilling method for complex lunar surface conditions

Abstract

The invention relates to an unmanned independent self-adapting drilling method orienting complicated moon surface work conditions. According to the method, firstly, selective spiral drilling tool drilling parameter combinations are sequenced according to the moon soil simulation degrees in easy-to-drill moon soil simulation combinations to obtain a first result including a plurality of drilling parameter combinations; then, according to the driving capability and the safety margin of a spiral drilling tool footage driving mechanism, the drilling force load judging threshold values of each drilling parameter combination in the first result are set and are used as second results; finally, the current practical work condition moon soil to be drilled is obtained; the practical moon soil is sequentially drilled according to the plurality of drilling parameters in the first result; the drilling force load judging threshold values in the second results are used for judgment until the practical moon soil drilling sampling is completed; a third result is generated. By using the method provided by the invention, the drilling parameter combination is sequenced, so that the moon soil drilling and core taking performance evaluation problem of the spiral drilling tool is solved; simplicity and effectiveness are realized; the good use value is realized.

Description

technical field [0001] The invention relates to the field of deep space exploration, in particular to an unmanned autonomous self-adaptive drilling method for complex lunar surface working conditions. Background technique [0002] With the advancement of modern technology, human beings now have the ability to reach extraterrestrial bodies other than Earth. The deep space exploration of extraterrestrial bodies is of great scientific significance for human beings to explore the origin of life on Earth, study stellar evolution and the relationship between star and planet formation. Under these conditions, major international spacefaring countries have carried out or planned to carry out various deep space exploration projects, especially various star soil sampling and return missions. The difficulties of star soil sampling tasks are closely related to the nature of star soil, especially In the deep lunar soil drilling and sampling mission. [0003] The formation of actual lun...

AI Technical Summary

Problems solved by technology

[0004] In the world, the rotation and movement of the auger drilling tool is usually used to implement the lunar soil drilling and sampling task. However, for a certain state of the auger drilling tool, a fixed rotation and footage parameters can only ensure normal drilling and sampling within a certain range of fluctuations in the state of the lunar soil. In this way, the permissible fluctuation range of the lunar soil state under high density and large internal friction angle is further reduced

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