Development of a numerical model for KLS-1 and mobility analyses based on the effects of design variables

IF 2.8 3区地球科学 Q2 ASTRONOMY & ASTROPHYSICS

Advances in Space Research Pub Date : 2025-03-13 DOI:10.1016/j.asr.2025.03.024

Ji-Tae Kim , Tae-Kyeong Yeu , Young-Jun Park

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引用次数: 0

Abstract

Rover mobility is a critical factor for the successful navigation and operation of lunar exploration missions, especially on challenging terrains. Understanding the interaction between the rover wheels and the lunar surface is essential for optimizing the design to improve traction, reduce energy consumption, and ensure the rover’s stability. The aim of this study was therefore to develop a numerical model that reflects the characteristics of the Korea-Lunar-Simulant-1, and analyze the design variables of wheels that influence the rover mobility. To achieve these objectives, the characteristics of Korea-Lunar-Simulant-1 were measured, and the key-parameters influencing the characteristics were derived using the discrete element method with the Plackett–Burman design. A Box–Behnken design was used to analyze the impacts of the levels and combinations of key-parameters on the behavior characteristics, thus leading to the identification of the parameter levels and combinations that can simulate the behavior of the Korea-Lunar-Simulant-1. The derived combinations of the key-parameters were validated by comparison with the shear properties to verify the accuracy. Finally, based on the numerical model, the effects of wheel width and grouser spacing on mobility were analyzed. Consequently, the grouser spacing was found to be an interconnected optimization target with the wheel diameter and grouser height.

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KLS-1数值模型的建立及基于设计变量影响的流动性分析

月球车的机动性是月球探测任务成功导航和运行的关键因素，尤其是在具有挑战性的地形上。了解月球车车轮与月球表面之间的相互作用对于优化设计以提高牵引力、降低能耗和确保月球车的稳定性至关重要。因此，本研究的目的是建立一个反映韩国-月球模拟1号特征的数值模型，并分析影响月球车机动性的车轮设计变量。为实现上述目标，对韩国-月球-模拟1号卫星的特性进行了测量，并采用Plackett-Burman设计的离散元法推导了影响其特性的关键参数。采用Box-Behnken设计分析了关键参数的级别和组合对行为特征的影响，从而确定了可以模拟韩国-月球模拟-1行为的参数级别和组合。通过与剪切性能的对比，验证了关键参数组合的正确性。最后，在数值模型的基础上，分析了轮宽和耙距对机动性的影响。结果表明，耙齿间距与轮径和耙齿高度是一个相互关联的优化目标。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Space Research 地学天文-地球科学综合

CiteScore

5.20

自引率

11.50%

发文量

800

审稿时长

5.8 months

期刊介绍： The COSPAR publication Advances in Space Research (ASR) is an open journal covering all areas of space research including: space studies of the Earth''s surface, meteorology, climate, the Earth-Moon system, planets and small bodies of the solar system, upper atmospheres, ionospheres and magnetospheres of the Earth and planets including reference atmospheres, space plasmas in the solar system, astrophysics from space, materials sciences in space, fundamental physics in space, space debris, space weather, Earth observations of space phenomena, etc. NB: Please note that manuscripts related to life sciences as related to space are no more accepted for submission to Advances in Space Research. Such manuscripts should now be submitted to the new COSPAR Journal Life Sciences in Space Research (LSSR). All submissions are reviewed by two scientists in the field. COSPAR is an interdisciplinary scientific organization concerned with the progress of space research on an international scale. Operating under the rules of ICSU, COSPAR ignores political considerations and considers all questions solely from the scientific viewpoint.