Analysis of Lunar Soil Excavation Resistance Based on ADAMS-EDEM Coupling Simulation
According to the demand of lunar resource exploitation,this paper proposes a five-bar mechanism for lunar soil excavation,and obtains the displacement equation of the end point of the mechanism by using closed-loop vector method.Forces on the tip and surface of the shovel are respectively analyzed according to Bekker's semi-empirical equation and Rankine's passive soil pressure theory,and the equation of the combined force on the shovel when excavating lunar soil is obtained.ADAMS-EDEM coupling simulation is applied to verify the above mechanical model,and it is proved that the model is able to predict the resistance on the mechanism during excavation.
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