磁悬浮飞轮锁紧保护技术研究与发展现状

介绍了国内外常用的磁悬浮飞轮用一次性锁紧装置和可重复锁紧装置，分析了它们的结构和工作原理。综述了这些磁悬浮飞轮用锁紧装置的研究现状及其在卫星姿态控制系统中的应用。介绍了国外一次性内/外锁紧方案，结合各种方案结构示意图，给出了不同锁紧装置的适用场合。为克服一次性锁紧装置不可重复锁紧/解锁的缺点，论述了国内可重复锁紧装置的发展过程，重点分析了基于楔形块自锁的可重复内锁紧装置和可重复抱式外锁紧装置。展望了锁紧保护技术的未来发展方向，指出基于单执行机构的可重复内锁紧装置、高锁紧刚度、高阻尼可重复锁紧装置和锁紧保护效果评价方法是磁悬浮飞轮保护技术的研究重点。

Research and development status of locking protection technologies for magnetic bearing flywheels

The common one-off locking devices and repeated locking devices at domestic and overseas for magnetic bearing flywheels are introduced and their structures and working principles are analyzed. The research status of locking protection devices for magnetic bearing flywheels and their applications in satellite attitude control systems are summarized. The foreign one-off inner and outer locking devices are introduced. Combining the scheme construction of locking devices, the application situations of different locking devices are presented. To remedy the defect of one-off locking device which can not repeat locking and releasing, the development of domestic repeated locking devices is reviewed. The repeated inner locking device based on self-locking of wedge and the repeated clamping locking device are emphatically analyzed. Finally, the developing prospect of locking protection technology is expected. It points out that the inner repeatable locking device based on single actuator, the repeatable locking device with high locking stiffness and damping, and the testing method to verify protection function will be primary research directions of locking protection technology for magnetic bearing flywheels.