Abstract
Calculation of the reaction force is critical for the design of planetary sampling devices, and this paper discusses a new method based on the predicted zone of influence. According to accurate DEM simulations, the influence zone was defined from the calculation of the threshold particle displacement. To predict the influence zone, a back-propagation artificial neural network was trained with multiple simulated data. The reaction force can be calculated by computing the force along the external edge of the predicted influence zone. With consideration of the influence zone but without DEM simulation, this new method is accurate and effective.
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Acknowledgements
The authors gratefully acknowledge Professor Takashi Matsushima of the University of Tsukuba for DEM software, equipment and theoretical guidance during the research. This project was financially supported by the National Natural Science Foundation of China (No. 11502034) and China Scholarship Council (No. 201608510014). Theoretical support from Chengdu University of Technology and the State Key Laboratory of Geohazard Prevention and Geoenvironment is also acknowledged.
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Qian, L., Matsushima, T., Lanlan, X. et al. Reaction force calculation for planetary sampling devices based on the predicted zone of influence. Comp. Part. Mech. 8, 1–20 (2021). https://doi.org/10.1007/s40571-019-00308-2
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DOI: https://doi.org/10.1007/s40571-019-00308-2