@inproceedings{362342d16c8f4815a6b311ee689868b1,
title = "A study on force situation of the coring pipe caused by filling lunar regolith in the drilling process",
abstract = "To find out the influence factors to the force situation of the coring pipe in the drilling process, the discrete element method is employed to build the lunar regolith model and simulate the interaction between soil and the drill. A viscoelastic contact model is introduced to represent the impact between particles. To make sure the validity of the model, a biaxial-test is conducted to optimize the micro-parameters of the model. The drilling process is simplified to an inserted process and the model after calibration is in use. From the computational simulation results, conclusions can be made: to reduce the drilling speed or to drill aslant may be good to decrease the force loaded on the inside wall. Enlargement of the diameter and thickness can improve the sampling efficiency and prevent the soil sample from being destroyed, and drilling aslant may be harmful to the sample.",
keywords = "Biaxial test, Discrete element method, Insertion process, Simplified movement, Viscoelastic contact model",
author = "Liu, \{Tian Xi\} and Cheng Wei and Liang Ma and Yang Zhao",
year = "2014",
doi = "10.4028/www.scientific.net/AMM.577.267",
language = "英语",
isbn = "9783038351559",
series = "Applied Mechanics and Materials",
publisher = "Trans Tech Publications Ltd",
pages = "267--272",
booktitle = "Applied Decisions in Area of Mechanical Engineering and Industrial Manufacturing",
address = "瑞士",
note = "3rd International Conference on Mechanical, Control, and Electronic Information, ICMCEI 2014 ; Conference date: 27-06-2014 Through 29-06-2014",
}