微小卫星用微型控制力矩陀螺研究

摘要

随着技术的发展,微小卫星已经成为一种功能强大的航天器.为了进一步拓展微小卫星的应用领域,提升其任务效益,高敏捷机动能力成为了微小卫星发展的重要方向.控制力矩陀螺(CMG)因其具有高转矩能量比和低重量力矩比,将成为实现微小卫星敏捷机动的重要执行机构.介绍一种新型的可应用于微小卫星的微型CMG,其角动量为0.1N·m·s.经过实验室测试和环境试验,结果表明该型CMG可满足微小卫星的姿态控制需求.%With the development of the aerospace technology,the demand for small satellites is increasing gradually.The agility of small satellites is a critical parameter,in the viewpoint of application field expansion and mission return maximization.The control moment gyroscope (CMG) exhibits better performances in terms of torque-power and mass-torque characteristics,which make it a key actuator for agile and precise attitude control.In this paper,a miniature CMG is developed for small satellites with O.1 N · m · s angular momentum.The performance and the environmental tests of the CMG are discussed,which demonstrate that the requirement of small satellites attitude control is perfectly met.