月面钻进真空环境模拟装置的设计与验证

丁希仑; 刘舒婷; 张涛

doi:10.13700/j.bh.1001-5965.2015.0669

月面钻进真空环境模拟装置的设计与验证

doi: 10.13700/j.bh.1001-5965.2015.0669

北京航空航天大学机械工程及自动化学院, 北京 100083

详细信息

作者简介:
丁希仑,男,博士,教授,博士生导师。主要研究方向:空间机器人与空间机构学、仿生机器人、智能控制与自动化检测技术等。Tel.:010-82338005,E-mail:xlding@buaa.edu.cn;刘舒婷,女,硕士研究生。主要研究方向:地外环境模拟、地外钻取采样等。Tel.:010-82339055,E-mail:liushuting91@foxmail.com

通讯作者:
丁希仑,Tel.:010-82338005,E-mail:xlding@buaa.edu.cn

中图分类号: V524.3;TB771
计量
- 文章访问数: 970
- HTML全文浏览量: 86
- PDF下载量: 1035
- 被引次数: 0
出版历程
- 收稿日期: 2015-10-16
- 修回日期: 2015-11-20
- 网络出版日期: 2016-11-20

Design and verification of vacuum environmental simulation device for lunar surface drilling

School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 探月工程（三期）项目提出了在月面进行至少2 m深度的钻取采样任务，前期需要在地面进行模拟月面钻进过程热特性的研究，为此本文发明了一套月面真空环境模拟装置。根据模拟月壤钻进试验的要求，设计了一种可从底部抽气的三段式可多次拆装的真空罐结构。考虑到模拟月壤的颗粒大小和快速抽真空的要求，设计了一种筛网状具有多层过滤结构的月壤筒。根据在真空度不变的条件下可进行连续多次钻进试验的要求，设计了可从外部操作的具有缺齿结构的月壤筒转动机构。由真空度要求和可耐粉尘的特性要求，选取了三级扩散泵组。实验表明，在不放置模拟月壤的情况下，本环境模拟装置中的真空度可达10^-1 Pa，在放置模拟月壤的情况下，真空度可达7 Pa，能够满足模拟月面钻进过程热特性试验的要求。此外，通过测量抽真空过程中真空度随时间的变化情况还得出了模拟月壤出气量曲线，对模拟月壤真空系统的实验应用具有重要价值。
- 真空装置 /
- 环境模拟 /
- 钻进试验 /
- 模拟月壤 /
- 真空实现 /
- 动密封
Abstract: The third stage of China's lunar exploration project presented the task of drilling samples of lunar soil over 2 m deep, which motivates us to study the thermal characteristics during the drilling process. To support this research, a lunar surface vacuum environmental simulation device was designed. According to the requirements of the drilling test, a three-part and dismountable vacuum chamber was designed which was pumped from the bottom of the chamber. Considering the lunar soil simulant's size and rapid vacuum acquirement requirements, a cribriform lunar soil container with multi-layer filtrations was designed. Based on the demand of repeatable drilling tests in the same condition, the slewing mechanism with missing teeth gear was designed which allowed external operation. Finally, a three-stage diffusion pump set was selected according to the vacuum and dust tolerance requirements. Experimental results show that the vacuum of this simulation device reaches to 10^-1 Pa without lunar soil inside, and reaches to 7 Pa with lunar soil inside.These performance indicators satisfy the vacuum requirements of the drilling test. The outgassing amount curve of simulated lunar soil is obtained by measuring the variation of vacuum with time during the pumpout process, which is valuable for the lunar soil vacuum system's application.
- vacuum device /
- environmental simulation /
- drilling test /
- lunar soil simulant /
- evacuating method /
- dynamic sealing

HTML全文

参考文献(16)

[1]	欧阳自远.月球科学概论[M].北京:中国宇航出版社,2005:313-317.OUYANG Z Y.Introduction to lunar science[M].Beijing:China Astronautic Publishing House,2005:313-317(in Chinese).
[2]	陈金明,景甫林,黄本诚.开展我国月球环境模拟试验技术研究的建议与设想[J].航天器环境工程,2003,20(2):1-4.CHEN J M,JING F L,HUANG B C.Suggestion on the research on lunar environmental simulation test techniques in China[J].Spacecraft Environment Engineering,2003,20(2):1-4(in Chinese).
[3]	SHI X M,DENG Z Q,QUAN Q Q,et al.Development of a drilling and coring test-bed for lunar subsurface exploration and preliminary experiments[J].Chinese Journal of Mechanical Engineering,2014,27(4):673-682.
[4]	侯佑松.月面钻取采样过程钻具热特性测试系统研制与试验研究[D].哈尔滨:哈尔滨工业大学,2013:3-4.HOU Y S.Drill thermal characteristics test system development and experiment research of the lunar surface drilling sampling process[D].Harbin:Harbin Institute of Technology,2013:3-4(in Chinese).
[5]	FOUNTAIN J A,WEST E A.Thermal conductivity of particulate basalt as a function of density in simulated lunar and Martian environments[J].Journal of Geophysical Research,1970,75(20):4063-4069.
[6]	CREMERS C J,BIRKEBAK R C,DAWSON J P.Thermal conductivity of fines from Apollo 12[C]//Proceedings of the Second Lunar Science Conference.Cambridge:MIT Press,1971:2311-2315.
[7]	BERNETT E C,WOOD H L,JAFFE L D,et al.Thermal properties of a simulated lunar material in air and in vacuum[J].AIAA Journal,1963,1(6):1402-1407.
[8]	ZACNY K,PAULSEN G,SZCZESIAK M,et al.LunarVader:Development and testing of lunar drill in vacuum chamber and in lunar analog site of Antarctica[J].Journal of Aerospace Engineering,2013,26(1):74-86.
[9]	CUI J S,HOU X Y,ZHAO D M,et al.Thermal simulation and experiment of lunar drill bit in vacuum[J].Indonesian Journal of Electrical Engineering and Computer Science,2014,12(6):4756-4763.
[10]	张涛,安迎和,丁希仑.模拟月壤真空试验装置设计及实现方法研究[J].北京航空航天大学学报,2015,41(11):2110-2115.ZHANG T,AN Y H,DING X L.The design of vacuum test device and the study of pumping method about lunar soil simulants[J].Journal of Beijing University of Aeronautics and Astronautics,2015,41(11):2110-2115(in Chinese).
[11]	陈诗吉.月壤热物性特征及其剖面温度垂直分布模拟[D].上海:华东师范大学,2014:12-20.CHEN S J.Thermophysical properties of lunar regolith and simulation of its vertical temperature distribution[D].Shanghai:East China Normal University,2014:12-20(in Chinese).
[12]	WECHSLER A E,GLASER P E.Pressure effects on postulated lunar materials[J].Icarus,1965,4(4):335-352.
[13]	TIEN C L,NAYAK A L.Analytical models for lunar soil thermal conductivity[C]//AIAA 10th Thermophysics Conference.Reston:AIAA,1975:27-29.
[14]	YOVANOVICH M M,KITSCHA W W.Modeling the effect of air and oil upon the thermal resistance of a sphere-flat contact[C]//AIAA 8th Thermophysics Conference.Reston:AIAA,1974:293-319.
[15]	李京霖,丁希仑,张文明，等.一种多功能小行星采样器的设计[J].机械工程学报,2015,51(13):167-175.LI J L,DING X L,ZHANG W M,et al.Design of a multi-function mintor planet soil sampler[J].Journal of Mechanical Engineering,2015,51(13):167-175(in Chinese).
[16]	达道安.真空设计手册[M].北京:国防工业出版社,2004:769-786.DA D A.Vacuum design manual[M].Beijing:National Defense Industry Press,2004:769-786(in Chinese).