摘要
针对空间机械臂关节内部功耗大、散热路径复杂、工作时间长、工作姿态复杂多变的热特点,对空间机械臂关节进行了详细热控设计,并进行了低温工况和4种高温工况下的热分析。通过低温工况的分析计算,得到了主动热控平均功耗为14.5W,关节温度在-30.8^-20.8℃范围内,满足存储温度指标。高温工况分析了不同阳光照射状态下关节的温度分布及最长可工作时间,关节在极端高温状态下可工作2h,满足使用要求。
The joint of space manipulator has the characteristics of high internal power, complex heat dissipation path, long working time and the complex work attitude which brings serious challenges to the thermal design. Considering the above characteristics, a detailed thermal control scheme was proposed for the space manipulator joint. Thermal analysis was carried out under extreme conditions including a low temperature condition and four high temperature conditions. The analysis of the low temperature condition showed that the average power consumption of active thermal control was 14.5 W and the temperature of the joint was within the range of -30.8 ℃ to -20.8 ℃. As to the high temperature conditions, the temperature distribution and the longest working time of the joint were analyzed for different solar radiation states. The joint could work 2 hours at extreme high temperature which could meet the requirements of usage.
作者
刘春龙
郭亮
胡日查
张旭升
黄勇
吴清文
史士财
LIU Chunlong;GUO Liang;HU Richa;ZHANG Xusheng;HUANG Yong;WU Qingwen;SHI Shicai(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;Harbin Institute of Technology,Harbin 150001,China)
出处
《载人航天》
CSCD
北大核心
2019年第3期372-377,共6页
Manned Spaceflight
基金
国家自然科学基金青年项目(61605203)
中国科学院创新青年促进会基金(2015173)
关键词
空间机械臂
关节
热设计
热分析
space manipulator
joint
thermal design
thermal analysis
