摘要
极高星敏主法兰采用SiC/Al复合材料开展设计,通过多点对称辐射分布式子柔性单元布局方式实现主法兰的微形变,以保证其高刚度和高稳定性。探讨了多点对称辐射分布式柔性结构的刚度问题,对多点对称辐射分布式柔性主法兰进行轻量化设计,获取最佳结构分布,实现了极端力、热环境下SiC/Al主法兰微米尺度形变设计与制造;通过工程分析和试验完成了主法兰的性能评价,结果表明主法兰相对变形为9μm、热稳定为0.05″/℃,基频为160Hz,柔性单元位置的应力为76MPa,消除了整机力热试验低频漂移和高频紊乱现象,整机具有较高的力热环境适应性。
The main flange is designed with Si C/Al material,and micro-deformation of main flange is realized through muti-point symmetric radiation distributed flexible unit layout to ensure its good performance.The stiffness of muti-point symmetric radiation distributed flexible structure is discussed,and the lightweight design is carried out,which realizes the micro-deformation design and manufacturing.Engineering analysis and experiment is carried out to further proved the performance of main flange.The results show that the micro-deformation of Si C/Al main flange is 9μm,thermo stability is 0.05″/℃,first order frequency is 160Hz,and the stress in flexible unit is 76MPa.This method eliminates the low-frequency drift and high-frequency disturbance of the response curves.
作者
王晓燕
李林
白山
钟俊
隋杰
王苗苗
王艳宝
Wang Xiaoyan;Li Lin;Bai Shan;Zhong Jun;Sui Jie;Wang Miaomiao;Wang Yanbao(Space Optoelectronic Measurement and Perception Lab.,Beijing Institute of Control Engineering,Beijing 100190)
出处
《航天制造技术》
2022年第5期22-24,29,共4页
Aerospace Manufacturing Technology
基金
国家航天重大工程专项、国家自然科学基金(No.51905034、No.52275083)
国家重点研发计划项目(No.2021YFB3203100)
