An Automatic Dry Sieving Mechanism for a Lunar Brick Payload
2025
Bram Verbruggen | Xiaochen Zhang | Aidan Cowley | Kathryn Hadler
This paper presents the design, implementation, and testing of an automated sieve system tailored for lunar regolith sorting to support ISRU applications, specifically targeting particles of 500 μm size. The design incorporates an approach to mitigate sieve blocking, crucial for effective regolith particle separation, utilizing natural frequencies and adjustable sieve angles. The results indicate the system’s effectiveness in separating regolith simulant fractions, with notable variations in sieving efficiency and sieve blocking observed based on sieve angles, simulant types, and aperture sizes. Further investigations include evaluating the influence of amplitude and moisture content on sieving efficiency and analyzing sieve blocking tendencies. Despite variations in simulant behavior and operational parameters, the prototype demonstrates promising performance, characterized by tight confidence intervals in measured results.
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