摘要
针对航天员开展舱外活动时与舱体的可靠连接和工作位姿的调节与固定这两个亟待解决的问题,提出了一种舱外活动用新型三关节便携式脚限位器的设计,阐述了其结构组成和工作原理,确定了其系统方案和技术参数;基于静力学和有限元分析,对设计进行了结构优化,利用ADAMS软件对该装置进行了运动学和动力学仿真分析,验证了该装置通过三个关节机构实现折叠状态和调节位姿的有效性,获得了主要关节位姿调节的运动学和动力学特性,为该装置的结构改进和优化奠定了基础。
Foot restraint is an important auxiliary equipment for astronaut extravehicular activities( EVA). In order to meet the needs of reliable connection and the adjustment of position during EVA,a new kind of articulating portable foot restraint( APFR) with three joints was put forward.Its composition and working principle were introduced and the systematic design and technical parameters of the APFR were determined. Based on static and finite element analysis,the APFR structure design was conducted,kinematics and dynamics simulation analysis of the APFR were performed with ADAMS software. Simulation results verified the effectiveness of the three joints during the folding state and position adjusting. The kinematics and dynamics characteristics to adjust position by joints of the APFR were obtained. It laid a foundation for the structure improvement and optimization of the APFR.
出处
《载人航天》
CSCD
2015年第5期492-497,共6页
Manned Spaceflight
