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航天器太阳翼在轨挠性振动测量中的无依托敏感技术

郎燕,梁鹤,袁利,张锦江,郭朝礼   

  1. 北京控制工程研究所
  • 收稿日期:2022-06-20 修回日期:2022-09-12 出版日期:2022-09-13 发布日期:2022-09-13
  • 通讯作者: 袁利

Unsupported sensing technology of in-orbit vibration measurement of the flexible spacecraft solar array

  • Received:2022-06-20 Revised:2022-09-12 Online:2022-09-13 Published:2022-09-13

摘要: 基于自供电无线加速度计网络,中国空间站天和核心舱、问天实验舱分别于2021年5月、2022年7月针对大型柔性太阳翼在轨开展了振动测量和挠性参数辨识试验。以该任务需求为牵引和实践,总结了无依托敏感技术在空间探测任务中需具备的若干核心能力,包括自供电自充电、无依托敏感器间数据代传、高可靠数据采集、高精度时间同步和自主休眠唤醒等方面。详细阐述了上述能力的设计思路和实现方案,并给出了空间站太阳翼振动测量任务中的无依托敏感器的实际验证结果。在轨测试结果表明所提出的无依托敏感技术设计策略的有效性和合理性。

关键词: 空间站, 振动测量, 无依托敏感, 自供电自充电, 无线采集, 时间同步, 休眠策略, 在轨验证

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

Key words: space station, vibration measurement, unsupported sensing, self-power supply and self-charging, wireless acquisition, time synchronization, sleep strategy, on-orbit verification

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