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Parametric analysis of lugged wheel performance for a lunar microrover by means of DEM |
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| Authors: | H Nakashima H Fujii A Oida M Momozu Y Kawase H Kanamori S Aoki T Yokoyama |
| Institution: | a Division of Environmental Science and Technology, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, Japan b Toyota Motor Corporation, Toyota 471-8571, Japan c Tire Research Department, Bridgestone Corporation, Kodaira, Tokyo 187-8531, Japan d Institute of Technology, Shimizu Corporation, Etchujima 3-4-17, Koto-ku, Tokyo 135-8530, Japan e Lunar Mission Research Center, Japan Aerospace Exploration Agency (JAXA), Sengen 2-1-1, Tsukuba 305-8505, Japan |
| Abstract: | The purpose of this study was to develop a numerical tool to simulate the performance of lugged wheels designed for a lunar microrover. The performance was analyzed using a Discrete Element Method (DEM) whose accuracy was validated for interactions between lugged wheels and soil. DEM analysis indicated that, on flat horizontal lunar surfaces, wheels with 18 10-mm-high lugs would provide less net traction than would wheels with 36 5-mm-high lugs. |
| Keywords: | Computational mechanics Discrete element method Soil– wheel system Wheel performance Lug parameters Lunar microrover |
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