The Science of Plume Effects - Center for Lunar & Asteroid
"Optical Extinction Measurements of Dust Density in the GMRO Regolith Test Bin." (2016). Lane, John E., and Philip T. Metzger (2012), "Ballistics Model for Particles on a Horizontal Plane in a Vacuum Propelled by a Vertically Impinging Gas Jet," …
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Regolith cities
May 30, 2020 · Elsewhere, however, "regolith is basically just moon dirt or Mars dirt," says Jennifer Edmundson, a geologist and in-space manufacturing engineer at Jacobs Space Exploration Group, a NASA contractor.
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A new experimental capability for the study of regolith
Extraction force decreases for a constant force pull to where S is the boulder surface area embedded in the regolith and pc is the cohesion strength of the regolith.
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Bionic Design for Mars Sampling Scoop Inspired by
The measurements of the front clawed toes are shown in Figure 2. As it is the longest toe, the second toe is the first to touch the ground during digging. L. L. Johnson and R. H. King, "Measurement of force to excavate extraterrestrial regolith with a small bucket-wheel device," Journal of Terramechanics, vol. 47, no. 2, pp. 87–95, 2010.
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Regolith Excavation Performance of a Screw‐Propelled
Oct 04, 2021 · The high tractive force and potential for reducing the force required to excavate material make SPVs highly interesting as a candidate for an ISRU excavation system. On Earth, SPVs have traditionally been used in terrestrial applications in amphibious or otherwise challenging environments [ 27 - 29 ] where sand, marshes, clay, or ice is present.
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Earth and Space 2016 | Proceedings - ASCE Library | Civil
Optical Extinction Measurements of Dust Density in the GMRO Regolith Test Bin. J. E. Lane, J. G. Mantovani, Design of an Excavation Robot: Regolith Advanced Surface Systems Operations Robot (RASSOR) 2.0. Robert P. Mueller, Extraterrestrial Regolith Derived Atmospheric Entry Heat Shields. Michael D. Hogue,
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In-situ Oxygen Production System (ISOPS) – an integrated
The Excavation System is composed of three subsystems: an Excavator Subsystem to collect regolith, a Loading-Unloading Subsystem to load and unload the regolith into an oxygen production furnace or other test chamber, and a Bulk Physical Characteristics Test Chamber to measure bulk physical properties of the lunar regolith.
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(PDF) EXCAVATION OF LUNAR REGOLITH WITH …
EXCAVATION OF LUNAR REGOLITH WITH RAKES/RIPPERS FOR IMPROVED EXCAVATION EFFICIENCY Masafumi IAI and Leslie GERTSCH Department of Geological Engineering, Missouri University of Science and Technology, MO, USA As humanity's activities expand to the Moon, Mars, and other extra-terrestrial bodies, it will be necessary to use local resources rather than …
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Review on Bioinspired Planetary Regolith-Burrowing Robots
Humerus excavation relies on the continuous outward rotation of the forelimbs to excavate regolith, which is a systematic method used by animals that specialize in excavation. The representative creatures include sand crabs (Trueman 1970 ), moles (Yalden 1966 ; Van Wassenbergh et al. 2017 ), and pangolins (Lehmann et al. 2020 ).
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Missouri University of Science and Technology Scholars' Mine
was forced into the center of each sample while the required force and the resulting penetration were recorded. The results show strong sensitivity to water content. Regolith containing up to 0.3% water ice is very easy to excavate and behaves like weak coal. Regolith with 0.6 to 1.5% ice is readily excavatable and acts like weak shale or mudstone.
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Aug 24, 2017 · 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.
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Regolith - an overview | ScienceDirect Topics
Jennifer A. Grier, Andrew S. Rivkin, in Airless Bodies of the Inner Solar System, 2019 Importance of Regolith. Regolith is an important feature of airless bodies for a host of reasons. One is due to simple geometric considerations alone: 6% of the volume of a 1-km sphere is within 10 m of its surface, for instance, and the overturn and exhumation processes in regolith increases the …
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ISRU Info : Home of the Space Resources Roundtable
Experimental Facility to Measure Power and Forces to Excavate Lunar Regolith Simulants Documents 3.7 mb Karol Seweryn, Space Research Centre, Polish Academy of Sciences, Poland Excavation of Planetary Regolith in Non-Easily Accessible Places Using Wireline Technology Documents 3.7 mb Drew Smith, NASA Kennedy Space Center
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Reducing Extra-Terrestrial Excavation Forces with Percussion
over burden of regolith, which must be removed to access it. On Earth a construction excavation machine typically uses a brute force approach to excavate soil and other granular materials. Conversely, when operating in the reduced gravity environments of the …
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Measurement of force to excavate extraterrestrial regolith
Previous research indicates a bucket-wheel excavator is a good candidate excavator tool; so, we developed a laboratory-scale apparatus to measure the horizontal and vertical forces forces Subject Category: Properties see more details and power required to excavate simulated regolith with a micro-scale bucket wheel. This paper describes the apparatus and presents the results …
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Regolith Excavation Performance of a Screw‐Propelled
Oct 04, 2021 · The high tractive force and potential for reducing the force required to excavate material make SPVs highly interesting as a candidate for an ISRU excavation system. On Earth, SPVs have traditionally been used in terrestrial applications in amphibious or otherwise challenging environments [ 27 - 29 ] where sand, marshes, clay, or ice is present.
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Controlling subterranean forces enables a fast, steerable
The clams inspired two burrowing robots (45, 46), whereas a proposed lunar excavation method used a gas jet to excavate regolith in a manner similar to the octopus . Fluidization is also used to reduce forces in the construction industry, such as in pile jetting ( …
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Lunar Drilling, Excavation and Mining in Support of
Exploration of almost any extraterrestrial body follows a path from low complexity, low science pay-off to high risk, high pay off. The Moon, being the closest extraterrestrial body, was the first body to be examined with a naked eye by ancient astronomers and philosophers from Babylonia, Greece, and Egypt.
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Measurement of force to excavate extraterrestrial …
8 rows · Apr 01, 2010 · Data from the measurements allowed us to evaluate whether a sojourner size (20 kg)
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The 2010 Field Demonstration of the Solar Carbothermal Reduction of Regolith to Produce Oxygen Documents 2.5 mb J.G. Mantovani, R.P. Mueller, I.I. Townsend, J. Craft, K. Zacny Pneumatic Planetary Regolith Feed System for In-Situ Resource Utilization Documents 6.4 mb O.R. Walton, C.B. Dreyer, A.I. Abdel-Hadi Centrifuging-Pipe Conveyor for Regolith
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