嫦娥五号采样封装系统设计与实现

Design and implementation of sampling,encapsulating,and sealing system of Chang’e-5

嫦娥五号探测器成功实现了中国首次月球无人采样返回任务,采样封装是任务的重要环节之一,先后获取了深度剖面和多点表面月球样品,并完成了月球样品的极低漏率密封.本文首先分析了嫦娥五号采样封装工作的任务特点,论述了高可靠采样、非定结构封装、关键环节测量、系统集成验证、在轨操控等关键技术的实现方案,阐述了采样封装产品的技术特点,并对月面采样封装期间的钻取采样、表取采样、密封封装等在轨实施情况进行了总结.月面采样封装工作结果表明,采样封装系统方案设计正确、地面验证充分、器地一体化操控高效,圆满完成了我国首次月面采样封装工作.

Chang’e-5 explorers realized the first extraterrestrial body sample return mission of China.The sampling,encapsulating,and sealing processes are one of the critical links in Chang’e-5 mission.The depth-section samples of lunar subsurface and multipoint samples of the lunar surface were acquired successively,and all the lunar samples were sealed using very low leaking-rate encapsulation.Here,we first analyze the task characteristics of lunar sampling,encapsulation,and sealing.Then,we discuss the important approaches on high reliable sampling,unfixed structure encapsulation,measurement of key manipulation,system integrated verification,and teleoperation on the lunar surface.The technology features in the flight-model development process are presented.Then,the implementation of lunar drilling,surface sampling,sealing,and state checking during Chang’e-5 mission is summarized.It is confirmed that the scheme of the sampling,encapsulation and sealing system is correct,and the teleoperation approach is efficient.