| 月壤大颗粒对钻进力载影响的仿真及实验研究 |
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| 引用本文： | 庞勇,冯亚杰,孙启臣,赖小明,王海元,陈锡宝,梁杰能,刘天喜.月壤大颗粒对钻进力载影响的仿真及实验研究[J].北京大学学报(自然科学版),2019,55(3):397-404. |
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| 作者姓名： | 庞勇 冯亚杰 孙启臣 赖小明 王海元 陈锡宝 梁杰能 刘天喜 |
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| 作者单位： | 北京卫星制造厂有限公司,北京,100090;北京大学工学院,北京,100871;哈尔滨工业大学机电工程学院,哈尔滨,150000 |
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| 基金项目： | 国家自然科学基金(11502277, 51475452)资助 |
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| 摘 要： | 采用离散单元法(discrete element method, DEM)和实验方法, 研究用螺旋钻具钻取月壤的过程中, 月壤内部大颗粒位置和构型对钻进力载特性的影响。通过 DEM 方法和实验方法研究结果的对比分析, 明确了DEM方法在钻取动力学中的局限性及有效性, 发现钻进过程中碰到大颗粒时的典型力载特征及影响大颗粒有效拨开的关键因素是表面形态。
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| 关 键 词： | DEM方法 月壤 钻取 大颗粒 钻进力载 |
| 收稿时间： | 2018-04-10 |
Simulation and Experimental Study on the Effect of Large Granular Rocks in Lunar Soil on Drilling Load |
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| PANG Yong,FENG Yajie,SUN Qichen,LAI Xiaomin,WANG Haiyuan,CHEN Xibao,LIANG Jieneng,LIU Tianxi.Simulation and Experimental Study on the Effect of Large Granular Rocks in Lunar Soil on Drilling Load[J].Acta Scientiarum Naturalium Universitatis Pekinensis,2019,55(3):397-404. |
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| Authors: | PANG Yong FENG Yajie SUN Qichen LAI Xiaomin WANG Haiyuan CHEN Xibao LIANG Jieneng LIU Tianxi |
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| Institution: | 1. Beijing Spacecrafts, Beijing 100090 2. College of Engineering, Peking University, Beijing 100871 3. School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150000 |
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| Abstract: | The dynamics of auger drilling into lunar soil with large granular rocks was studied by discrete elementmethod (DEM) simulation and experiment, in which the large granular rocks with different configurations werearranged at different locations. The result of simulation and experiment indicate that the surface morphology is thekey factor which controls whether the granular rocks could be removed in drilling process. The result would be animportant support for China’s deep space exploration mission. |
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| Keywords: | DEM lunar soil auger drilling large granular rocks load |
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