适用于大型空间载荷的微振动数据处理方法  

Micro-vibration data processing method for large space payloads

作　　者：崔浩东 刘宝禄 许明明[1,2] 窦江培[1,2] CUI Haodong;LIU Baolu;XU Mingming;DOU Jiangpei(Nanjing Institute of Astronomical Optics&Technology,Chinese Academy of Sciences;CAS Key Laboratory of Astronomical Optics&Technology,Nanjing Institute of Astronomical Optics&Technology:Nanjing 210042,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院南京天文光学技术研究所 [2]中国科学院天文光学技术重点实验室(南京天文光学技术研究所),南京210042 [3]中国科学院大学,北京100049

出　　处：《航天器环境工程》2025年第2期128-135,共8页Spacecraft Environment Engineering

基　　金：中国载人航天工程巡天空间望远镜专项(编号:CMS-CSST-2021-A11,CMS-CSST-2021-B04);国家自然科学基金-天文联合基金项目(编号:U2031210);国家自然科学基金-重大仪器研制项目(编号:11827804)。

摘　　要：为解决大型空间载荷地面微振动测试中多传感器数据的变换合成问题,依托中国巡天空间望远镜(CSST)空间星冕仪载荷的测试工作,文章提出一种微振动数据处理算法:通过简易的坐标变换,将星冕仪载荷与卫星接口处的多传感器测量数据由传感器本体坐标系变换至参考坐标系下;以传感器的测量数据为输入,采用空间力合成理论计算得到载荷质心处六分量形式(F_(x),F_(y),F_(z),M_(x),M_(y),M_(z))的受力情况。为验证该算法中空间力合成理论的有效性,搭建了四传感器结构的简易测力台,与经标定的测力台测量同一振源。结果表明,三向力均方根(RMS)相对误差在4%以内,三向力矩RMS误差在8%以内。该算法可用于大型空间载荷微振动测试中的数据处理,指导并验证微振动隔振设计。To address the challenge of multi-sensor data transformation and synthesis in ground-based micro-vibration testing of large space payloads,an algorithm for micro-vibration data processing was proposed based on the testing of the coronagraph payload of the Chinese Space Station Telescope(CSST).The algorithm used a simple coordinate transformation to convert multi-sensor measurement data at the interface between the coronagraph payload and the satellite from the sensor's local coordinate systems to a common reference frame.Utilizing the transformed sensor data as input,the algorithm then applied spatial force synthesis theory to calculate the six-component force and moment(F_(x),F_(y),F_(z),M_(x),M_(y),M_(z))at the payload’s center of mass.To verify the effectiveness of the spatial force synthesis theory used in the algorithm,a simplified force measurement platform with four sensors was constructed and compared with a calibrated force measurement platform,both measuring the same vibration source.The results show that the relative root-mean-square(RMS)error of the three-axis forces is within 4%,and the RMS error of the three-axis moments is within 8%.This algorithm can be used for data processing in micro-vibration testing of large space payloads and serves as a tool for guiding and validating micro-vibration isolation design.

关 键 词：星冕仪载荷 微振动 微振动测试 力合成理论 多步坐标变换 

分 类 号：V416.2[航空宇航科学与技术—航空宇航推进理论与工程]