Mars and Lunar Vacuum Chamber Testing Facilities and Vacuum Rated Drill Systems

Details Mars and Lunar Vacuum Chamber Testing Facilities and Vacuum Rated Drill Systems Mars and Lunar Vacuum Chamber Testing Facilities and Vacuum Rated Drill Systems

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufm.p43a1423z&link_type=abstract

American Geophysical Union, Fall Meeting 2009, abstract #P43A-1423

Computer Science

Robotics

[5494] Planetary Sciences: Solid Surface Planets / Instruments And Techniques

Scientific paper

Martian and Lunar low pressure and vacuum conditions, respectively, greatly affect the performance of the drilling mechanics and drill hardware. For this reason, it is imperative to test planetary sampling and coring drills under these specific environments. Honeybee Robotics acquired an 11ft vacuum chamber that is currently being used to test drills to 1m depth and more. A separate cooling system is used to maintain low temperature of planetary analog formations such as ice, soil, icy-soils, and rocks. The low temperature increases the strength of these formations and in turn reduces drilling efficiency. The chamber also has a numerous feed troughs that can be used to transfer thermal data from thermocouples embedded inside the drilled sample, and the drill bits. The thermal data is useful to determine the temperature the sample reaches during the drilling process. The drill systems include rotary, rotary-percussive, and rotary-sonic. The latter two, in particular, offer superior performance in hard formations due to impacts and/or vibrations that enhance penetration rate. All the drill systems are vacuum rated and hence can be used as test platforms for vacuum testing.

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