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Granular Mechanics and Regolith Operations (GMRO)

With the lights out, the ISRU Pilot Excavator digs in regolith bin during testing inside Swamp Works at NASA’s Kennedy Space Center in Florida on July 28, 2022. Tests use a gravity assist offload system to simulate reduced gravity conditions found on the Moon. On the surface of the Moon, mining robots like the Pilot Excavator will excavate the regolith and take the material to a processing plant where usable elements such as hydrogen, oxygen and water can be extracted for life support systems. The Pilot Excavator can scoop up icy regolith which can be used to make operations on the Moon sustainable.

Capabilities

  • Two regolith test bins, one with 120 tons of BP-1 simulated extraterrestrial soil (25’x25′ area 3.5′ deep) and one with 2 tons of JSC-1a simulated extraterrestrial soil (calibrated dusty environment measurements, dusty mechanisms testing)
  • Fine Particle Analyzer (FPA), sieves & shaker, and soil compressor.
  • A complete complement of soil mechanical testers (proctor compactor, limit devices, vibration table with relative density set, triaxial shear tester, direct shear tester, consolidation tester, permeation cells).
  • Rocket plume testers, penetrometers, coring devices, hand-held testers, ultrasonic bath, drying oven, several furnaces, wet/dry sieving, dehumidifier, microscopy, hydrometer test set, cameras, high speed camera, video graphic analysis, dust hood, sandblast hood,3.6Ghz Spectrum Analyzer and Millimeter Wave Doppler Radar for estimating dust ejecta velocity.
  • Fanuc Industrial Robot
  • UR10 robot arm
  • Kuka Industrial Robot Arm
  • 3D printers (3 Lulzbots, 3 Ultimakers).
  • Multiple high end computer workstations with physics simulation software (PFC2D, PFC3D, EDEM, Mathematica, LabVIEW, custom software in Fortran, COMSOL with various add-ons).
  • Rapid prototype capability including CNC router, 2 CNC mills, lathe, band saws and shop area.
  • Collaboration space with large video wall, outdoor assembly area.
  • Multiple cryogenic temperature dusty environmental chambers.
  • State of the art actuator testing capabilities (down to 1 millitorr vacuum, 40 Kelvin temperatures, input and output feed throughs, over 300 Nm torque inputs, efficiency measurements through torque transducers, real-time tooth decay measurements)
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