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Volume 41 Issue 11
Nov.  2015
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Journal of Beijing University of Aeronautics and Astronautics  > 2015  >  41(11): 2110-2115.
ZHANG Tao, AN Yinghe, DING Xilunet al. Device design and implementation method of lunar soil simulant vacuum test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(11): 2110-2115. doi: 10.13700/j.bh.1001-5965.2014.0753(in Chinese)
Citation: ZHANG Tao, AN Yinghe, DING Xilunet al. Device design and implementation method of lunar soil simulant vacuum test[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(11): 2110-2115. doi: 10.13700/j.bh.1001-5965.2014.0753(in Chinese)
shu

Device design and implementation method of lunar soil simulant vacuum test

doi: 10.13700/j.bh.1001-5965.2014.0753

  • School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 02 Dec 2014
  • Rev Recd Date: 12 Dec 2014
  • Publish Date: 20 Nov 2015
    Abstract
  • Drilling sample of lunar soil over depth of 2 m is the most important object of the third stage of China's lunar exploration project. For performance test and security validation of the drilling process, it is necessary to simulate a vacuum thermal environment which is close to lunar surface and then to carry out the simulation test. A test device for lunar soil simulant in vacuum condition was designed and the pumping method was studied. The vacuum degree, under the condition of mechanical pump, influenced by pumping velocity, sample volume, water content, density and temperature was analyzed. Furthermore, with comparing the effect of methods which pumped from the top and the bottom of the lunar simulants vessel, the most efficient method to maintain the density of lunar soil simulants was put forwarded. The research makes some contribution to the construction of lunar vacuum thermal environment simulator.

     

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