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http://dx.doi.org/10.5139/JKSAS.2019.47.1.26

Development of a Coarse Lunar Soil Model Using Discrete Element Method  

Jeong, Hyun-Jae (Chonbuk National University)
Lim, Jae Hyuk (Chonbuk National University)
Kim, Jin-Won (Korea Aerospace Research Institute)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.47, no.1, 2019 , pp. 26-34 More about this Journal
Abstract
In this paper, a coarse lunar soil model is developed using discrete element method and its computed physical properties are compared with those of the actual lunar soil for its validation. The surface of the actual moon consists of numerous craters and rocks of various sizes, and it is covered with fine dry soil which seriously affects the landing stability of the lunar lander. Therefore, in consideration of the environment of the lunar regolith, the lunar soil is realized using discrete element method. To validate the coarse model of lunar soil, the simulations of the indentation test and the direct shear test are performed to check the physical properties(indentation depth, cohesion stress, internal friction angle). To examine the performance of the proposed model, the drop simulation of finite element model of single-leg landing gear is performed on proposed soil models with different particle diameters. The impact load delivered to the strut of the lander is compared to test results.
Keywords
Lunar Lander; Lunar Soil; Discrete Element Method; Direct Shear Test;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 Jeong, H. J., Lim, J. H., and Kim, J. W., "Evaluation of Landing Stability of Lunar Lander Considering Various Landing Conditions," Journal of The Korean Society of Aeronautical and Space Sciences, Vol. 46, No. 2, 2018, pp.124-132.   DOI
2 Sahinoz, A., "Landing Gear Design and Stability Evaluation of a Lunar Lander for Soft Landing," Proceedings of the Bennett Conference on Mechanical Engineering, April 2012, pp.1-17.
3 Pham, V. L., Zhao, J., Goo, N. S., Lim, J. H., Hwang, D. S., and Park, J. S., "Landing Stability Simulation of a 1/6 Lunar Module with Aluminum Honeycomb Dampers," International Journal of Aeronautical and Space Sciences, Vol. 14, No. 4, 2013, pp.356-368.   DOI
4 Huang, B., Jiang, Z., Lin, P., and Ling, D., "Research on Impact Process of Lander Footpad against Simulant Lunar Soils," Hindawi Publishing Corporation Shock and Vibration, Vol. 2015, pp.1-24.
5 Nakashima, H., Fujii, H., Oida A., Momozu, M., Kanamori, H., Aoki, S., Yokoyama, T., Shimizu, H., Miyasaka, J., and Ohdoi, K., "Discrete element method analysis of single wheel performance for a small lunar rover on sloped terrain," Journal of Terramechanics, Vol. 47, No. 5, 2010, pp.307-321.   DOI
6 Abaqus Analysis User's Manual (6.14), Dassault Systemes, 2014.
7 Heiken, G. H., Vaniman, D. T., and French, B. M., "Lunar Source Book, a User's Guide to the Moon," CAMBRIDGE UNIVERSITY PRESS, 1991.
8 Yang, M. S., Jun, C. W., and Sohn, J. H., "Comparisons of Free Flowing Simulation of the Sand by Using DEM with the Experiment," Proceedings of the Korean Society of Mechanical Engineers, December 2016, pp.2674-2676.
9 Park, S. H., Choi, D. K., and Sohn, D. W., "A study on fluid flow characteristic depending on the size distribution and volume fraction of particulate solid materials using discrete element modeling of packed beds," Proceeding of the Korean Society of Mechanical Engineers, 2016, pp.1269-1272.
10 Imre, B., Rabsamen, S., and Springman, S. M., "A coefficient of restitution of rock materials," Computers & Ceosciences, Vol. 34, 2008, pp.339-350.   DOI
11 O'Sullivan, C., and Bray, J. D., "Selecting a suitable time step for discrete element simulations that use the central difference time integration scheme," Engineering Computations, Vol. 21, 2013, pp.278-303.   DOI
12 Mitchell, J. K., Houston, W. N. Scott, R. F., Costes, N. C., Carrier, W. D., and Bromwell, L. G., "Mechanical Properties of Lunar Soil," Proceedings of the Third Lunar Science Conference, Vol. 3, 1978, pp.3235-3253.
13 Liu, T., Wei, C., Liang, L, Zhang, and J., Zhao, Y., "Simulation and Analysis of the Lunar Regolith Sampling Process Based on the Discrete Element Method," Transactions of the Japan Society for Aeronautical and Space Sciences, Vol. 57, No. 6, 2014, pp.309-316.   DOI
14 Man, L., Hailong, W., Dongbo, T., Jingyu, T., Zhen, L., and Yu, L., "Discrete Element Simulation of Lunar Dust Suspension Caused by Lunar Rover Wheel," International Conference on Transportation, Mechanical, and Electrical Engineering, December 2011, pp.316-319.
15 Sperling, F. B., "Basic and Mechanical Properties of the Lunar Soil Estimated From Surveyor Touchdown Data," JPL Technical Memorandum 33-443, March 1970.
16 Bui, H., Kobayashi, T., Fukagawa, R., and Wells, J. C., "Numerical and experimental studies of gravity effect on the mechanism of lunar excavations," Journal of Terramechanics, Vol. 46, 2009, pp.115-124.   DOI
17 Yang, S. S., Kang, Y. C., Son, J. Y., Oh, M. H., Kim, J. H., and Cho, J. Y., "Optimization of shock absorption system for lunar lander considering the effect of lunar regolith," Journal of The Korean Society of Aeronautical and Space Sciences, Vol. 42, No. 4, 2012, pp.284-290.   DOI
18 Modenese, C., Utili, S., and Houlsby, G. T., "DEM Modelling of Elastic Adhesive Particles with Application to Lunar Soil," Earth and space, 2012, pp.45-54.
19 Koh, S. W., Chang, B. C., Koo, J. K., and Lee, T. S., "Study for Korean Lunar Simulant Prototype Development," Korea Society of Civil Engineers Convention, 2009, pp.3598-3601.
20 https://www.astm.org/
21 Witthoeft, A. F., and Kim, H., "Numerical investigation of earth pressure reduction on buried pipes using EPS geofoam compressible inclusions," Geosynthetics International, February 2016.
22 http://structx.com/Soil_Properties_003.html
23 Rogers, W. F., "Apollo Experience Report-Lunar Module Landing Gear Subsystem," NASA TN D-6850, Manned Spacecraft Center, June 1972.
24 Oh, M. H., Cho, Y. M., Lee, H. J., Cho, J. Y., Kim, S. W., and Hwang, D. S., "Sequential Approximate Optimization of Shock Absorption System for Lunar Lander by using Quadratic Polynomial Regression Meta-model," Proceeding of The Korean Society For Aeronautical And Space Sciences Fall Conference, Nov. 2010, pp.355-358.