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Study on geomechanical properties of lunar soil simulant (LSS-ISAC-1) for chandrayaan mission
, 2020Under Chandrayaan - II mission, simulation studies on lunar terrain were required for evaluation of the performance of rover and lander. In order to carry out mobility tests of a rover, it was required to prepare a lunar terrain testbed, which required a
I. Venugopal +4 more
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Equivalent boundary model of lunar soil drilling simulation by DEM
, 2020Aiming to solve the computational cost problem in the discrete element simulation for lunar soil drilling sampling, an equivalent boundary method was proposed. A high-accuracy DEM model of lunar soil was established firstly.
Tianxi Liu, L. Liang, Yang Zhao, D. Cao
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Search for strangelets in lunar soil
Journal of Physics G: Nuclear and Particle Physics, 2006The possible existence of strangelets has been hypothesized for a long time but has not been confirmed experimentally. Our experiment aims to search for strangelets in lunar soil samples, where the predicted concentration of one oxygen strangelet per 1016–1017 normal oxygen atoms is 104 times higher than that on earth.
Ke Han, the LSSS Collaboration
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, 2020
The retention characteristics of the stratification information is one of the important factors of lunar soil drilling process. A high-accuracy DEM model of lunar soil was established and verified to be accurate both in shear strength indices and elastic-
Tianxi Liu, Z. Bai, Yang Zhao
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The retention characteristics of the stratification information is one of the important factors of lunar soil drilling process. A high-accuracy DEM model of lunar soil was established and verified to be accurate both in shear strength indices and elastic-
Tianxi Liu, Z. Bai, Yang Zhao
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Acta Astronautica, 2020
During the landing of lunar probes on the surface of the Moon, lunar soil particles are lifted and diffused under the action of a plume. This study used three methods to numerically investigate the diffusion of lunar soil particles under a plume in a ...
Zhigang Bo +3 more
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During the landing of lunar probes on the surface of the Moon, lunar soil particles are lifted and diffused under the action of a plume. This study used three methods to numerically investigate the diffusion of lunar soil particles under a plume in a ...
Zhigang Bo +3 more
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Accumulation of Carbon in Lunar Soils
Nature Physical Science, 1973Analyses of the carbon compounds released by pyrolysis from size fractions and particle separates of lunar soils indicate that the rate at which extralunar carbon is accumulated is slow compared to the rate at which it is redistributed among the different particle types by the cycle of particle erosion and aggregation.
D. J. DESMARAIS +2 more
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An alterable constitutive law of high-accuracy DEM model of lunar soil
, 2020The accuracy of discrete element model has great influence on the DEM simulations of lunar soil, especially on the soil-tool interaction simulations.
Tianxi Liu, L. Liang, Yang Zhao, D. Cao
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SAE Technical Paper Series, 1996
<div class="htmlview paragraph">We have conducted experiments on 16 lunar soils and 3 lunar volcanic glass samples to study the extraction of oxygen, an important resource for future lunar bases. The samples were chosen to span the range of composition and mineralogy represented in the Apollo collection.
Carlton C. Allen +2 more
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<div class="htmlview paragraph">We have conducted experiments on 16 lunar soils and 3 lunar volcanic glass samples to study the extraction of oxygen, an important resource for future lunar bases. The samples were chosen to span the range of composition and mineralogy represented in the Apollo collection.
Carlton C. Allen +2 more
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Dynamic-compacting based lunar soil simulant preparation for subsurface exploration
, 2020Compared to other technical methods, drilling and coring by only using the compound motions of rotation and penetration can sample subsurface lunar soils relatively efficiently. Considering that drill tool's power consumption and soils' coring morphology
Junyue Tang +7 more
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Lunar problems in soil engineering
Journal of Terramechanics, 1965In the relatively near future unmanned, and perhaps manned spacecraft will make soft landings on the moon, and ultimately on some of the other planets. Because our knowledge of the intimate small-scale properties of the lunar surface is almost nonexistent, it is desireable to devise surface models and materials in line with current information for the ...
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