一种α粒子微推进空间矢量控制结构的设计与实现  

Design and realization of a space vector control structure for theα particle micro-propulsion

作　　者：徐飞[1,2] 夏彦 何世熠[3] 肖文磊 刘国青 XU Fei;XIA Yan;HE Shiyi;XIAO Wenlei;LIU Guoqing(Beijing Institute of Spacecraft Environment Engineering;National Key Laboratory of Science and Technology on Reliability and Environmental Engineering:Beijing 100094,China;Northwest Institute of Nuclear Technology,Xi’an 710024,China;School of Mechanical Engineering&Automation,Beihang University,Beijing 100083,China)

机构地区：[1]北京卫星环境工程研究所 [2]可靠性与环境工程技术重点实验室,北京100094 [3]西北核技术研究所,西安710024 [4]北京航空航天大学机械工程及自动化学院,北京100083

出　　处：《航天器环境工程》2020年第2期143-147,共5页Spacecraft Environment Engineering

基　　金：国家自然科学基金青年项目(编号:11605010)。

摘　　要：针对无拖曳飞行与皮纳卫星轨控的微推进器需求,根据α衰变推进原理设计了矢量控制结构,将α粒子推力薄膜矢量排布成类半球结构,采用超声电机驱动光阑独立控制推力大小,利用多个推力组合实现精确矢量控制。理论计算与分析表明:此结构最大推力可达6.9μN,与1 m^2太阳光压相当,且合力方向整体法向集中。In view of the requirements of micro-thrusters for the drag-free flight and the orbit control of pico&nano satellites, a vector control structure is designed according to the principle of α particle propulsion. We propose a hemispherical structure with α particle thrust film vector arrangement. The diaphragm driven by each ultrasonic motor provides the thrust independently, and an accurate vector control can be realized by properly adjusting the state of the substructures. The theoretical calculation and analysis show that the structure can achieve a maximum thrust force of 6.9 μN equivalent to the solar pressure on a 1 m^2 surface, and the resultant force is concentrated in the normal direction generally.

关 键 词：轨道控制 微推进 超声电机 矢量分析 

分 类 号：V43[航空宇航科学与技术—航空宇航推进理论与工程] V525