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- W2098372453 abstract "Identifying planetary soil parameters is not only an important scientific goal, but also necessary for exploration rover to optimize its control strategy and realize high-fidelity simulation. An improved wheel-soil interaction mechanics model is introduced, and it is then simplified by linearizing the normal stress and shearing stress to derive closed-form analytical equations. Eight unknown soil parameters are divided into three groups. The highly complicated coupled equations, each of which includes all the unknown soil parameters, are then decoupled. Each decoupled equation contains one or two groups of soil parameters, making it feasible to make a step-by-step identification of all the unknown parameters that characterize the soil. Wheel-soil interaction experiments were performed for six kinds of wheels with different dimensions and wheel lugs on simulated planetary soil. Soil parameters are identified with the measured data to validate the method, which are then used to predict wheel-soil interaction forces and torque, with a less than 10% margin of error. The improved model, decoupled analytical model, and soil-characterizing method can play important roles in the development of both the planetary exploration rovers and the terrestrial vehicles." @default.
- W2098372453 created "2016-06-24" @default.
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- W2098372453 date "2009-10-01" @default.
- W2098372453 modified "2023-09-26" @default.
- W2098372453 title "Parameter identification for planetary soil based on a decoupled analytical wheel-soil interaction terramechanics model" @default.
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- W2098372453 doi "https://doi.org/10.1109/iros.2009.5354538" @default.
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