摘要
从大射电望远镜馈源舱AB轴机构转动装置的结构出发,分析目前AB轴机构设计中驱动力矩过大的原因,完成AB轴机构转动装置的优化设计。在目前AB轴机构的结构设计基础上,从A轴、B轴驱动的负载力矩出发,对A轴、B轴的转动装置进行了结构优化,重新设计了转动中心的位置,通过有限元仿真分析,得出了优化前后AB轴机构的结构变形。结果表明:优化后AB轴机构的最大变形量较改进前有所减小。
Aiming at the rotation device of the AB shaft mechanisms in large radio telescope feed cabin, we analyzed the reasons of large driving torque on AB shaft. Based on the design of the AB shaft mechanisms, starting from driving torque of A shaft and B shaft, the position of rotation center was redesigned and achieved the optimal design of the rotation device of AB shaft mechanisms. The deformations of the AB shaft mechanisms before and after optimal design are obtained, respectively, by finite dement analysis. The resuhs showed that the maximum deformation of the AB shaft mechanisms was reduced, and the effectiveness of the optimal design was verified. The study provides a significant reference for the optimal design of the AB shaft mechanisms.
出处
《机械科学与技术》
CSCD
北大核心
2014年第7期1058-1061,共4页
Mechanical Science and Technology for Aerospace Engineering
基金
国家自然科学基金项目(51205339)
中国科学院国家天文台大射电望远镜项目资助
关键词
大射电望远镜
机构
优化设计
有限元分析
deformation
design
efficiency
finite element analysis
finite element method
large radio telescope
mechanisms
optimal design
optimization
parameterization
radio telescopes
structural optimization
