大型磁悬浮CMG锁紧装置设计与实验

摘要

Aiming at large-sized magnetic suspension CMG rotor system,By comparatively analyzing the resonance frequencies of large-sized magnetic suspension CMG rotor system under locking state with inner and outer locking constraints,the outer is adopted.The dynamic and static analysis of the outer locking scheme is carried out during launch vibration,the constraint parameter of locking device is obtained.According to design results,a outer locking scheme is developed,Environmental mechanics vibration experiment is adopted,so as to verify the protection effects on rotor system by the locking device.The results show that there is no obvious resonance in the rotor system during testing,which indicates the locking device can effectively protect rotor system.%针对大型磁悬浮CMG转子系统,比较分析大陀螺用内外锁紧方案对转子系统共振频率的影响,得到较优的抱式外锁紧方案.依据发射振动工况对外锁紧方案进行了动力学与静力学分析,得到锁紧装置的锁紧约束参数.根据设计结果研制了一台锁紧装置,并采用环境力学振动实验检验锁紧装置对转子系统的锁紧保护效果.结果表明,实验过程中转子系统未发生明显的共振,证明锁紧装置能够对转子系统进行有效保护.