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宇航员手持式高频冲击采样装置的设计研究
陈化智1, 姜生元1, 张明2, 张玉良2, 沈毅1, 全齐全1, 梁鲁3, 张志贤3
1.哈尔滨工业大学机器人技术与系统国家重点实验室, 哈尔滨 150080;2.北京卫星制造厂, 北京 100080;3.中国空间技术研究院载人航天总体部, 北京 100094
摘要:
获取具有原态层理信息的月壤剖面样品是我国载人登月人工采样任务的重要目标之一。对比国外地外天体采样技术,提出了一种适合宇航员手持操作的高频冲击式采样装置。采样装置采用高频冲击作用下颗粒的单向运移原理,可保证样品的原态层理信息,降低了采样功耗,提高了取芯率;取芯机构表面的各向异性摩擦形貌增强了颗粒单向运移效果,提高了采样效率;改变冲击频率进行取芯试验,得到了冲击频率与表面形貌对取芯率的影响规律,为我国载人登月人工采样装置的设计研究提供技术参考。
关键词:  人工采样;高频冲击;单向运移;应力波
DOI:10.15982/j.issn.2095-7777.2015.02.005
分类号:
基金项目:国家国际科技合作专项项目(2014DFR50250);载人航天领域预先研究项目(050102)
High-Frequency Impact Handheld Sampling Device for Astronaut
CHEN Huazhi1, JIANG Shengyuan1, ZHANG Ming2, ZHANG Yuliang2, SHEN Yi1, QUAN Qiquan1, LIANG Lu3, ZHANG Zhixian3
1.State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150080, China;2.Beijing Satellite Manufacture Factory, Beijing 100080, China;3.Institute of Manned Space System Engineering, CAST, Beijing 100094, China
Abstract:
Obtaining primary lunar regolith with bedding information is one of the important targets in China's lunar-landing and manual sampling project. A high-frequency impact handheld sampling device suitable for astronauts is designed comparing with foreign sampling techniques. The sampling device uses particle's single-direction motion in high-frequency impact, which can keep sample's primary bedding information, reduce power consumption, and increase coring ratio. Particle's single-direction moving effect and coring ratio will be increased through anisotropic friction morphology on coring mechanism surface meanwhile. Law of coring ratio affected by impact frequency and surface morphology has been obtained via variable frequency coring experiment, which can be technical reference for the design of manual sampling device in China's lunar landing project.
Key words:  manual sampling;high-frequency impact;single-direction motion;stress wave