摘要
针对空间太阳电池阵驱动机构的轻量化和长寿命两大关键技术,研制了一种轻小型双轴驱动机构,该机构由连续转动轴(A轴)和有限角度转动轴(B轴)组成,连续转动轴利用导电滑环传输电能,机构具有结构紧凑、刚度好以及重量轻等优点.并通过了包括导电滑环和谐波减速器在内的关键活动部件加速寿命试验考核.利用热分析软件对双轴驱动机构进行了热分析仿真,通过比较不同热控方案下的温度场分布,确定了可以采用的热控措施.
This paper introduced a lightweight Dual-axis solar array drive assembly（SADA）,aiming at two key technologies of lightweight and long life.The Dual-axis SADA consists of A-axis which provides 360°of rotation and power transfer through the use of a slip ring device and B-axis which provides±90°of travel and incorporates a simple flex loop for power transfer.The accelerated life test of key moving parts of SADA including the slip ring and the harmonic reducer were preformed and passed.The designed principle prototype of SADA has some merits,such as compact structure, good stiffness and light weight.The thermal analysis of the Dual-axis SADA had been preformed. The measures of thermal control are presented by comparing temperature distribution under different schemes.
出处
《空间科学学报》
CAS
CSCD
北大核心
2011年第3期390-394,共5页
Chinese Journal of Space Science
基金
上海市科学技术委员会项目资助(06DZ22105)
