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Calibration of Discrete Element Method Parameters for a High-Fidelity Lunar Regolith Simulant Considering the Effects of Realistic Particle Shape

文献类型：期刊论文

作者Zhou, Ningxi2,3; Chen, Jian1,2,3,4; Tian, Ning2,3; Tian, Kaiwei2,3; Huang, Juehao2,3; Wu, Peng2,3
刊名MATERIALS
出版日期2024-10-01
卷号17期号:19页码:19
关键词lunar regolith simulant discrete element method parameter calibration particle shape angle of repose
DOI10.3390/ma17194789
英文摘要The Discrete Element Method (DEM) is an important tool for investigating the geotechnical properties of lunar regolith. The accuracy of DEM simulations largely depends on precise particle modeling and the appropriate selection of mesoscopic parameters. To enhance the reliability and accuracy of the DEM in lunar regolith studies, this paper utilized the high-fidelity IRSM-1 lunar regolith simulant to construct a DEM model with realistic particle shapes and conducted an angle of repose (AoR) simulation test. The optimal DEM parameters were calibrated using a combination of the Plackett-Burman test, steepest ascent test, and Box-Behnken design. The results indicate that the sliding friction coefficient, rolling friction coefficient, and surface energy significantly influence the simulation AoR. By optimizing against the measured AoR using a second-order regression model, the optimal parameter values were determined to be 0.633, 0.401, and 0.2, respectively. Under these optimal parameters, the error between the simulation and experimental AoR was 2.1%. Finally, the calibrated mesoscopic parameters were validated through a lifting cylinder test, showing an error of 6.3% between the simulation and experimental results. The high similarity in the shape of the AoR further confirms the accuracy and reliability of the parameter calibration method. This study provides a valuable reference for future DEM-based research on the mechanical and engineering properties of lunar regolith.
资助项目National Key Research and Development Program of China ; National Natural Science Foundation of China[52079135] ; [2021YFF0500301] ; [2023YFB3711301]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
语种英语
WOS记录号WOS:001332362500001
出版者MDPI
源URL[http://119.78.100.198/handle/2S6PX9GI/42766]  
专题中科院武汉岩土力学所
通讯作者Chen, Jian
作者单位1.Hubei Key Lab Geoenvironm Engn, Wuhan 430071, Peoples R China
2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.China Pakistan Joint Res Ctr Earth Sci, Islamabad 45320, Pakistan
推荐引用方式
GB/T 7714		 Zhou, Ningxi,Chen, Jian,Tian, Ning,et al. Calibration of Discrete Element Method Parameters for a High-Fidelity Lunar Regolith Simulant Considering the Effects of Realistic Particle Shape[J]. MATERIALS,2024,17(19):19.
APA Zhou, Ningxi,Chen, Jian,Tian, Ning,Tian, Kaiwei,Huang, Juehao,&Wu, Peng.(2024).Calibration of Discrete Element Method Parameters for a High-Fidelity Lunar Regolith Simulant Considering the Effects of Realistic Particle Shape.MATERIALS,17(19),19.
MLA Zhou, Ningxi,et al."Calibration of Discrete Element Method Parameters for a High-Fidelity Lunar Regolith Simulant Considering the Effects of Realistic Particle Shape".MATERIALS 17.19(2024):19.

入库方式： OAI收割

来源：武汉岩土力学研究所

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