%A Yan LANG, He LIANG, Li YUAN, Jinjiang ZHANG, Chaoli GUO, Guoqi ZHANG, Tao YIN %T Unsupported sensing technology of on⁃orbit vibration measurement of flexible spacecraft solar array %0 Journal Article %D 2023 %J Acta Aeronautica et Astronautica Sinica %R 10.7527/S1000-6893.2022.27644 %P 327644-327644 %V 44 %N 10 %U {https://hkxb.buaa.edu.cn/CN/abstract/article_19299.shtml} %8 2023-05-25 %X

Based on the self-powered wireless accelerometers network, on-orbit flexible vibration measurement and parameter identification tests for the large solar array are carried out in the Tianhe core module and Wentian laboratory module of China space station in May 2021 and July 2022, respectively. Based on the requirements of the missions, the core capabilities of the unsupported sensing technology in the space exploration mission are summarized in this paper, including self-power supply and self-charging, data transmitted between unsupported sensors, highly reliable data acquisition, high-precision time synchronization, and autonomous sleep wake-up. The design ideas and implementation schemes of the above capabilities are described in detail, and the actual verification results of the unsupported sensor in the space station solar array vibration measurement task are given. On-orbit test results demonstrate the effectiveness and rationality of the proposed strategies.