中国空间科学技术

中国空间科学技术 ›› 2024, Vol. 44 ›› Issue (5): 107-114.doi: 10.16708/j.cnki.1000-758X.2024.0078

• 论文 • 上一篇    下一篇

火星样品返回任务中样品捕获定向概念与验证

刘志，高金忠，于茂华，王治易，杨文淼，韩天，刘洲，苑会领   

  1. 1 上海宇航系统工程研究所，上海201109
    2 中国航天科技集团有限公司空间结构与机构技术实验室，上海201108
    3 北京科技大学 机械工程学院，北京100083
  • 出版日期:2024-10-25 发布日期:2024-10-21

Concept and verification of capture and orient module for Mars sample return

LIU Zhi，GAO Jinzhong，YU Maohua，WANG Zhiyi，YANG Wenmiao，HAN Tian，LIU Zhou，YUAN Huiling   

  1. 1 Aerospace System Engineering Shanghai，Shanghai 201109，China
    2 Space Structure and Mechanism Technology Laboratory of China Aerospace Science and Technology 
    Group Co.，Ltd.，Shanghai 201108，China
    3 School of Mechanical Engineering，University of Science and Technology Beijing，Beijing 100083，China
  • Published:2024-10-25 Online:2024-10-21

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摘要： 针对火星样品返回任务中样品捕获回收概念，提出了一种样品捕获定向系统架构，以实现火星轨道样品容器的在轨捕获、姿态定向，并将样品容器转移到封装桶内。该方案使用捕获盖进行样品容器的捕获；4个扇面形成可收缩的捕获空间，用于约束定位样品容器；扇面上的传送带与样品容器接触，利用摩擦力与突出挡条带动样品容器运动，传送带相互协同传动用于实现样品容器姿态回正，并转移到封装桶内。为了准确实现样品定向与直线转移，基于扇面转角测量信号制定了扇面与传送带的协调动作策略。设计和研制了样品捕获定向机构样机，测试验证了样品捕获、定向和转移功能。该机构具有质量小（＜12kg）、定向与转移功能集成度高、样品容器姿态回正适应性强、转移可靠性高等特点，可应用于火星样品返回任务。

关键词: 火星样品返回, 轨道样品, 火星样品容器, 样品捕获定向, 样品转移, 捕获初始条件

Abstract: An orbiting sample capture and orientation system architecture for the orbiting sample capture retrieve system concept is developed to enable on-orbit capture，orientation，and transfer of a Mars sample container into a containment vessel as part of a potential Mars sample return（MSR） campaign.The concept uses a rotating trap cover for orbiting sample （OS） capture，and four sector devices to form a retractable capture space for constraining and fixing OS container.The conveyor belts on the sector devices drive cooperatively with each other to realize OS container attitude return and to transfer to a containment vessel with friction force and protruding bars acting on the OS container.In order to accurately realize sample orientation and transfer，a coordinated action strategy between the sector devices and the conveyor belts is formulated based on the sector angle signals.A prototype of OS capture and orientation mechanism is designed and developed，and the functions of OS capture，orientation and transfer are tested and verified.The mechanism has the characteristics of light weight（<12kg），high integration of orientation and transfer functions，strong adaptability of OS container attitude correction，and high transfer reliability，and can be applied to potential Mars sample return mission.

Key words: Mars sample return（MSR）, orbiting sample（OS）, Mars sample container, orbiting sample capture and orient, orbiting sample transfer, capture initial conditions