本文综述了极限性能哈勃太空望远镜(Hubble Space Telescope,HST)在轨微振动的研究进展,说明了其指向测量与控制系统组成和特点,同时给出了其关键技术指标,有针对性地剖析了HST在高性能航天器微振动研究及指向控制技术等方面的先进技术...本文综述了极限性能哈勃太空望远镜(Hubble Space Telescope,HST)在轨微振动的研究进展,说明了其指向测量与控制系统组成和特点,同时给出了其关键技术指标,有针对性地剖析了HST在高性能航天器微振动研究及指向控制技术等方面的先进技术和理念。阐述了HST反作用轮组件、太阳电池阵的扰动特点以及微振动引起光学元件抖动的现象,在此基础上,对现代航天器5种先进指向控制技术进行了总结,包括基于降阶模型的控制、基于线性二次高斯的控制、解析和数值推导的H∞控制、协方差控制和双模干扰调节控制。HST微振动相关技术分析方法可为我国高分专项、深空探测、载人航天、引力波探测等涉及到的高性能航天器、毫角秒级敏感器以及空间站光学舱等高精度光学仪器的研制、地面试验和在轨干扰环境量化评估提供有益的借鉴。展开更多
Space deployable masts,as one of the most widely used branches of space deployable structures,can provide driving,positioning,and transmission functions for spacecraft in orbit,which are irreplaceable in complex space...Space deployable masts,as one of the most widely used branches of space deployable structures,can provide driving,positioning,and transmission functions for spacecraft in orbit,which are irreplaceable in complex space activities.The nonmagnetic telescopic tubular mast(NMTTM)is designed and manufactured by the Shenyang Institute of Automation,Chinese Academy of Sciences,aboard the SATech-01 satellite to keep the magnetic probe assembly away from magnetic interference and realize global magnetic field measurement.The NMTTM can withstand complicated vibration and shock during rocket launching in the retracted state of 0.95 m,while it can be stably released and deployed to 5.28 m in orbit.NMTTM was successfully launched into Sun-synchronous orbit on 27 July 2022,fully deployed,and generated the positioning signal after a duration of 19 min and 16 s for the deployment process on 7 November.This paper focuses on the whole process of NMTTM from mission requirements to structure design and manufacture,through to releasing,deployment,and locking technology,environmental simulation tests,up to on-orbit deployment verification,which provides valuable experience for the subsequent development and application of large-scale space deployable masts.展开更多
文摘本文综述了极限性能哈勃太空望远镜(Hubble Space Telescope,HST)在轨微振动的研究进展,说明了其指向测量与控制系统组成和特点,同时给出了其关键技术指标,有针对性地剖析了HST在高性能航天器微振动研究及指向控制技术等方面的先进技术和理念。阐述了HST反作用轮组件、太阳电池阵的扰动特点以及微振动引起光学元件抖动的现象,在此基础上,对现代航天器5种先进指向控制技术进行了总结,包括基于降阶模型的控制、基于线性二次高斯的控制、解析和数值推导的H∞控制、协方差控制和双模干扰调节控制。HST微振动相关技术分析方法可为我国高分专项、深空探测、载人航天、引力波探测等涉及到的高性能航天器、毫角秒级敏感器以及空间站光学舱等高精度光学仪器的研制、地面试验和在轨干扰环境量化评估提供有益的借鉴。
基金supported in part by National Key R&D Program of China(grant no.2018YFB1304600)Chinese Academy of Sciences Interdisciplinary Innovation Team(grant no.JCTD-2018-11)the Natural Science Foundation of China(grant no.51775541).
文摘Space deployable masts,as one of the most widely used branches of space deployable structures,can provide driving,positioning,and transmission functions for spacecraft in orbit,which are irreplaceable in complex space activities.The nonmagnetic telescopic tubular mast(NMTTM)is designed and manufactured by the Shenyang Institute of Automation,Chinese Academy of Sciences,aboard the SATech-01 satellite to keep the magnetic probe assembly away from magnetic interference and realize global magnetic field measurement.The NMTTM can withstand complicated vibration and shock during rocket launching in the retracted state of 0.95 m,while it can be stably released and deployed to 5.28 m in orbit.NMTTM was successfully launched into Sun-synchronous orbit on 27 July 2022,fully deployed,and generated the positioning signal after a duration of 19 min and 16 s for the deployment process on 7 November.This paper focuses on the whole process of NMTTM from mission requirements to structure design and manufacture,through to releasing,deployment,and locking technology,environmental simulation tests,up to on-orbit deployment verification,which provides valuable experience for the subsequent development and application of large-scale space deployable masts.
