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首页> 外文会议>IEEE International Conference on Mechatronics and Automation >The research on the effects of motion parameter on adhesive ability of a lunar crater exploration rover wheel based on DEM simulation
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The research on the effects of motion parameter on adhesive ability of a lunar crater exploration rover wheel based on DEM simulation

机译：基于DEM仿真的运动参数运动参数对月球喷枪勘探流动轮粘接能力的研究

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Lunar soil sampling is the premise of the analysis of lunar soil and the study of lunar environment and evolutional history. Because of the restrictions of the sampling method, the size of drillers, the drilling pressure and the output power of driller, the traditional digging and vertical drilling methods can only acquire the samples from lunar surface to 3 meters deep. In order to acquire deeper samples based on the existing technical methods, a new exploration concept in which a driller fixed on the rover takes a horizontal drilling and sampling at the cross section of a crater after cleaning the surface chaotic soil was proposed in this paper. When drilling horizontally, the maximum drilling pressure is limited by the low adhesive ability between wheels and sandy road. For the purpose of making sure enough drilling pressure, study was carried out in this paper to improve the adhesive ability of wheel by modifying the surface of wheel. A new kind of wheel with micro convex structures was proved to be more adhesive and stable during horizontal drilling by comparing with the existing wheel structures, such as the wheel with thorns or the wheel with discontinuous rims. The motion parameter of wheel has a significant influence on the driving property of wheel. In order to research the effects of motion parameter on adhesive ability of wheel, the process that wheels move on sandy road was simulated using a DEM software EDEM, the simulation results show that though the adhesive ability of wheel with convex structures will decrease with the increase of tangential velocity slightly, its adhesive ability is much higher than the adhesive ability of normal wheel.
机译：农历土壤采样是农历土壤分析的前提和农历环境与进化史研究。由于采样方法的限制，钻孔器的尺寸，钻孔的钻孔压力和输出功率，传统的挖掘和垂直钻井方法只能从月球表面汲取到3米深的样品。为了基于现有的技术方法获取更深层次的样品，在本文提出清洁表面混沌土壤之后，在流动站上固定在流动站上的钻井的钻孔钻头采取水平钻孔和取样。在水平钻孔时，最大钻孔压力受轮子和砂道之间的低粘合剂的限制。为了确保足够的钻孔压力，本文进行了研究，通过改变轮的表面来提高轮的粘合能力。通过与现有的车轮结构相比，在水平钻孔期间，证明了一种具有微凸结构的新型车轮在卧式钻孔期间更粘接和稳定，例如具有荆棘或带有不连续轮辋的轮子。车轮的运动参数对车轮的驱动性具有显着影响。为了研究运动参数对车轮粘合能力的影响，使用DEM软件EDEM模拟轮子在沙滩上移动的过程，仿真结果表明，尽管具有凸面结构的车轮的粘合能力将随着增加而降低切向速度略微，其粘合能力远高于正轮的粘合剂。

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