Effect of lunar soil properties on the nature of a sampling process /Based on data from the lunar probe 'Luna-20'/

Details Effect of lunar soil properties on the nature of a sampling process /Based on data from the lunar probe 'Luna-20'/ Effect of lunar soil properties on the nature of a sampling process /Based on data from the lunar probe 'Luna-20'/

Jan 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976kosis..14..120s&link_type=abstract

Kosmicheskie Issledovaniia, vol. 14, Jan.-Feb. 1976, p. 120-125. In Russian.

Computer Science

Core Sampling, Lunar Soil, Lunik 20 Lunar Probe, Soil Mechanics, Compacting, Drilling, Kinetic Friction

Scientific paper

The tasks performed with the core-sampling drill on Luna 20 are analyzed to determine why incomplete cores were obtained during the sampling process. A model of the soil-sampling process is outlined, and it is shown that the interruptions experienced were most likely due to a change in the nature of soil motion in the recepticle and along the screw conveyor of the drill. The layers in which samples were not obtained are determined, and a rough estimate is made of the kinetic-friction ratio between compacted and uncompacted soils in their natural deposits.

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