Design and experimental performance verification of a thermal property test-bed for lunar drilling exploration

作     者：Zhang Tao Zhao Zeng Liu Shuting Li Jinglin Ding Xilun Yin Shen Wang Guoxin Lai Xiaoming 

作者机构：School of Mechanical Engineering and Automation Beihang University Beijing 100083 China China Academy of Space Technology Beijing 100094 China 

基　　金：supported by the China Academy of Space Technology (CAST) 

出 版 物：《Chinese Journal of Aeronautics》 (中国航空学报（英文版）)

年 卷 期：2016年第29卷第5期

页      码：1455-1468页

摘      要：Chinese Chang＇e lunar exploration project aims to collect and return subsurface lunar soil samples at a minimum penetration depth of 2 m in 2017. However, in contrast to those on the Earth, automated drilling and sampling missions on the Moon raise the risk of burning bits. Test-beds are required for testing the thermal properties of drill tools in a lunar environment. In this paper, a novel temperature measuring method based on thermocouples and a slip ring was proposed. Furthermore, a data acquisition system for a drilling process was designed. A vacuous, cryogenic, and anhydrous soil environment simulating the lunar surface was established. A drilling test-bed that can reach a depth of 2.2 m was developed. A control strategy based on online monitoring signals was proposed to improve the drilling performance. Vacuum and non-vacuum experiments were performed to test the temperature rising effect on drill tools. When compared with the non-vacuum experiment, the vacuum temperature rise resulted in a 12 ℃ increase. These experimental results provide significant support for Chinese lunar exploration missions.

主 题 词：Drilling test bed Lunar drill Lunar environment simulator Temperature measurement Thermal property 

学科分类：07[理学] 08[工学] 070401[070401] 082503[082503] 0704[理学-天文学类] 0825[工学-环境科学与工程类] 

核心收录：

D　O　I：10.1016/j.cja.2016.03.008

馆 藏 号：203210615...