首页|航天员出舱活动用移动扶手原型设计与试验验证

航天员出舱活动用移动扶手原型设计与试验验证

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  • 国家科技期刊平台
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针对空间站舱外固定扶手难以满足航天员复杂舱外作业需求的问题，提出一种航天员出舱活动用的移动扶手，并对其进行了参数设计与试验研究。首先，在充分考虑着舱外服加压航天员手部施力特性的基础上，对舱外移动扶手操作机构的几何尺寸和弹簧刚度进行了参数设计。其次，为满足航天员在轨出舱单手操作移动扶手的人机工效学需求，对操作机构进行了自锁设计，并利用ADAMS对操作机构进行了动力学仿真分析，仿真结果表明，各操作机构能够实现自锁功能，且操作力符合着服加压航天员手部施力特性。最后，研制了舱外移动扶手原理样机，从功能、环境适应性及人机工效学方面进行了试验验证。试验结果表明:所述方案可顺利完成舱体扶手夹持、长度和角度调节，且实测操作力与理论值基本吻合，在力学和热学环境试验前后操作力无明显变化，各操作机构满足空间站舱外低轨环境及人机工效学要求。
Prototype Design and Performance Verification of a Movable Handrail for Extravehicular Activity of Astronaut
In view of the problem that the extravehicular fixed handrail is difficult to meet astronaut's complex extravehicular activity(EVA)needs,we propose a new design of movable handrail to benefit the EVA of astronauts.Specifically,we fully consider the hand force characteristics of astronauts in the pressurized spacesuit and design the parameters for geometric dimension and spring stiffness of each operating component in the movable handrail.In addition,in order to meet the needs of astronauts to operate the movable handrail with one hand during EVA,each operating component can be self-lock.Dynamics simulation analysis of each operating component is performed with ADAMS software.Simulation results show that operating components can be locked under appropriate operating force.We develop an engineering prototype of the extravehicular movable handrail based on the design and analysis result.Experimental verifications are carried out in terms of function,environment and ergonomics,which show that the proposed prototype can not only realize the clamping of the extravehicular fixed handrail but also freely adjust its own length and angle.In addition,the measured operating force is basically consistent with the theoretical value,and there is little change in the operating force before and after the force and thermal environment tests.All these experiments show that the proposed movable handrail has good adaptability to low-orbit environment of the space station.

extravehicular activity(EVA)extravehicular movable handrailmechanism designergonomics

刘俊良、傅浩、王哲、范子琦、郭涛

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北京卫星环境工程研究所,北京 100094,中国

哈尔滨工业大学机电工程学院,哈尔滨 150001,中国

出舱活动 出舱移动扶手 机构设计 人机工效学

CAST Science Foundation for Distinguished Young Scholars of ChinaNational Key Laboratory of Human Factors Engineering,Astronaut Center Of ChinaNational Key Laboratory of Science and Technology on Reliability and Environmental Engineering Technology,Beijing Institute

R-WY-JQRC-19

2024

10.16356/j.1005-1120.2024.01.009

南京航空航天大学学报(英文版)
南京航空航天大学

南京航空航天大学学报(英文版)

CSTPCD
影响因子：0.279
ISSN：1005-1120
年,卷(期)：2024.41(1)
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