TY - GEN
T1 - Concept of a wheel for micro lunar rover
AU - Nakashima, Hiroshi
AU - Takahashi, Hiroshi
AU - Tateyama, Kazuyoshi
AU - Fukagawa, Ryoichi
AU - Kobayahi, Taizo
AU - Kanamori, Hiroshi
AU - Aoki, Shigeru
AU - Matsui, Kai
PY - 2008/12/1
Y1 - 2008/12/1
N2 - Planetary exploration has been an interesting topic for researchers or scientists around the world. In terms of terra-mechanics, not only the development of rover vehicle itself but also the fundamental design of running devices for a target rover is important for successful exploration after landing on a planet. Superior mobility over unknown terrain conditions will be obtained by a rational design of wheels or tracks. However, as for a development of lunar rovers, prior successful and accessible experiences were only two cases-LRV (US) and Lunokhod (USSR). For a design of micro lunar rovers, these vehicles were too heavy. Thus, computational tool by the discrete element method (DEM) was applied to estimate the wheel performance for an autonomous lunar rover whose design mass would be about 60 kg. From the prior experiences on DEM analysis with parameter calibration by experiments, a shape of wheel was conceptually proposed for assumed dimension of a lunar micro rover. The traction performance and slope maneuverability of the concept wheel were estimated under 1/6 G condition.
AB - Planetary exploration has been an interesting topic for researchers or scientists around the world. In terms of terra-mechanics, not only the development of rover vehicle itself but also the fundamental design of running devices for a target rover is important for successful exploration after landing on a planet. Superior mobility over unknown terrain conditions will be obtained by a rational design of wheels or tracks. However, as for a development of lunar rovers, prior successful and accessible experiences were only two cases-LRV (US) and Lunokhod (USSR). For a design of micro lunar rovers, these vehicles were too heavy. Thus, computational tool by the discrete element method (DEM) was applied to estimate the wheel performance for an autonomous lunar rover whose design mass would be about 60 kg. From the prior experiences on DEM analysis with parameter calibration by experiments, a shape of wheel was conceptually proposed for assumed dimension of a lunar micro rover. The traction performance and slope maneuverability of the concept wheel were estimated under 1/6 G condition.
KW - Computational mechanics
KW - Discrete element method
KW - Lunar terrain
KW - Micro gravity
KW - Soil-wheel interaction
KW - Tractive performance
KW - Wheel
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M3 - Conference contribution
AN - SCOPUS:70449605993
SN - 9781627482936
T3 - 16th International Conference of the International Society for Terrain Vehicle Systems 2008, ISTVS 2008
SP - 156
EP - 161
BT - 16th International Conference of the International Society for Terrain Vehicle Systems 2008, ISTVS 2008
T2 - 16th International Conference of the International Society for Terrain Vehicle Systems 2008, ISTVS 2008
Y2 - 25 November 2008 through 28 November 2008
ER -