Specific Cutting Resistance of Lunar Regolith Simulant under Low Gravity Conditions

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概要

• 論文の詳細を見る

• Specific cutting resistance was determined through airplane experiments under low relative gravity conditions such as μ G, 0.15 G, 0.3 G, 0.5 G, and 1 G. Results showed that the relationship between specific cutting resistance and relative gravity could be expressed as a linear function. As for numerical analysis by discrete element method (DEM), the data of spring constant in a contact model of DEM could be treated as constant in the analysis of specific cutting resistance under low gravity conditions from the viewpoint of stress-oriented soil-machine interaction. Moreover, the numerical analysis by DEM with change of relative gravity and the corresponding modification of consolidation time is found to be sufficient to obtain a specific cutting resistance at a given low gravity condition below 1 G.

• 一般社団法人 日本機械学会の論文

著者

• Yokoyama Takaaki

  Department Of Earth And Planetary Science The University Of Tokyo

• Aoki Shigeru

  Institute Of Low Temperature Science Hokkaido University

• Nakashima Hiroshi

  Graduate School Of Engineering Nagoya University Crest Japan Science And Technology Corporation (jst

• YOKOYAMA Takaaki

  Department of Space and Astronautical Science, The Graduate University for Advanced Studies

• SHIOJI Yasuyuki

  Graduate School of Agriculture, Kyoto University

• TATEYAMA Kazuyoshi

  College of Science & Engineering, Ritsumeikan University

• KANAMORI Hiroshi

  Institute of Technology, Shimizu Corporation

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