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Percussion Mechanism for the Mars2020 Coring Drill

Show simple item record Chrystal, Kyle 2021-11-11T20:08:27Z 2021-11-11T20:08:27Z 2020-05-13
dc.identifier.citation 45th Aerospace Mechanisms Symposium, Houston, Texas, May 13-15, 2020
dc.identifier.clearanceno CL#20-0765
dc.description.abstract The Mars2020 rover includes a Sampling & Caching Subsystem (SCS) that is required to acquire core samples of hard rocks and to abrade rocky surfaces flat and smooth in order to facilitate surface science. Hard, high strength rocks exhibit brittle failure modes, and can be drilled and chiseled efficiently using percussive impacts. The coring drill percussion mechanism was designed to provide those impacts with variable output force and to be used with various drill bits. A unique hammering mechanism, using a base-driven hammer, powered by a conventional rotary actuator driving a Scotch yoke, was designed to robustly provide the required function in a Martian environment for a life exceeding 2 million impacts.
dc.description.sponsorship NASA/JPL en_US
dc.language.iso en_US
dc.publisher Pasadena, CA: Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2020
dc.title Percussion Mechanism for the Mars2020 Coring Drill
dc.type Preprint

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