月壤大颗粒对钻进力载影响的仿真及实验研究
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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。
The dynamics of auger drilling into lunar soil with large granular rocks was studied by discrete element method(DEM) simulation and experiment, in which the large granular rocks with different configurations were arranged at different locations. The result of simulation and expermient indicate that the surface morphology is the key factor which controls whether the granular rocks could be removed in drilling process. The result would be an important support for China's deep space exploration mission.
The dynamics of auger drilling into lunar soil with large granular rocks was studied by discrete element method(DEM) simulation and experiment, in which the large granular rocks with different configurations were arranged at different locations. The result of simulation and expermient indicate that the surface morphology is the key factor which controls whether the granular rocks could be removed in drilling process. The result would be an important support for China's deep space exploration mission.
引文
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[10]田野,邓宗全,唐德威,等.月壤钻探采样装置中的钻杆结构参数优化设计及模拟试验.机械工程学报,2012,48(32):10-15
[11]刘飞,侯绪研,全齐全,等.空心外螺旋钻杆与月壤相互作用力学模型研究.机械制造,2012,49(11):29-34
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[13]刘天喜,魏承,马亮,等.大颗粒岩块对月壤钻取过程的影响分析.岩土工程学报,2014,36(11):2118-2126
[14]Paulick M,Morgeneyer M,Kwade A.Review on the influence of elastic particle properties on DEMsimulation results.Powder Technology,2015,283:66-76
[15]Silbert L E,Erta?D,Grest G S,et al.Granular flow down an inclined plane:Bagnold scaling and rheology.Physical Review E,2001,64(5):051302
[2]庞彧,邓湘金,郑燕红.面对月壤采集的自动钻取机构设计.深空探测研究,2011,9(4):22-28
[3]Quan Q,Tang J,Yuan F,et al.Drilling load modeling and validation based on the filling rate of auger flute in planetary sampling.Chinese Journal of Aeronautics,2017,30(1):434-446
[4]Quan Q,Chen C,Deng Z,et al.Recovery rate prediction in lunar regolith simulant drilling.Acta Astronautica,2017,133:121-127
[5]Wei Cheng,Wang Hongliu,Liu Tianxi.Mechanical model of hollow-external-screw drill rod for lunar soil particle vertical conveying//IEEE International Conference on Control and Automation.Hangzhou,2013:1240-1245
[6]侯绪研,崔金生,赵德明,等.基于离散元法的月面取样技术对月壤样品层理信息影响的分析//中国宇航学会深空探测技术专业委员会第八届学术年会.上海,2011:568-577
[7]谢宇明,卿启湘,汤钦卿.月壤的钻取采样离散元动态行为研究.工程设计学报,2013,20(6):476-481
[8]Mellor M.Mechanics of cutting and boring:part 7,dynamics and energetics of axial rotation machines.Hanover:US Army Cold Regions Research and Engineering,1981
[9]Zhang T,Ding X.Drilling forces model for lunar regolith exploration and experimental validation.Acta Astronautica,2017,131:190-203
[10]田野,邓宗全,唐德威,等.月壤钻探采样装置中的钻杆结构参数优化设计及模拟试验.机械工程学报,2012,48(32):10-15
[11]刘飞,侯绪研,全齐全,等.空心外螺旋钻杆与月壤相互作用力学模型研究.机械制造,2012,49(11):29-34
[12]Tang J,Quan Q,Jiang S,et al.A soil flowing characteristics monitoring method in planetary drilling and coring verification experiments.Advances in Space Research,2016,59(5):1341-1352
[13]刘天喜,魏承,马亮,等.大颗粒岩块对月壤钻取过程的影响分析.岩土工程学报,2014,36(11):2118-2126
[14]Paulick M,Morgeneyer M,Kwade A.Review on the influence of elastic particle properties on DEMsimulation results.Powder Technology,2015,283:66-76
[15]Silbert L E,Erta?D,Grest G S,et al.Granular flow down an inclined plane:Bagnold scaling and rheology.Physical Review E,2001,64(5):051302