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为了防止磁悬浮轴承失效后高速旋转转子损坏磁悬浮轴承系统,主动磁悬浮轴承还需要保护轴承对转子起到临时支承作用。针对磁悬浮轴承失效后转子跌落在保护轴承上产生的振动与冲击,设计了1种在转子上安装弹性减振器的结构,运用动力学仿真软件ADAMS对转子-弹性减振器-保护轴承进行了动力学仿真,并进行了试验验证。结果表明:弹性减振器结构可明显减少轴承内圈所受的冲击。
In order to prevent the high-speed rotating rotor from damaging the magnetic bearing system after the failure of the magnetic bearing, the active magnetic bearing also needs to protect the bearing to play a temporary supporting role on the rotor. Aiming at the vibration and impact of the rotor drop on the protective bearing after the failure of the magnetic suspension bearing, a kind of structure that the elastic vibration damper is installed on the rotor is designed. The rotor-elastic vibration absorber-protection bearing is carried out by the dynamic simulation software ADAMS Dynamic simulation and experimental verification. The results show that the structure of elastic shock absorber can obviously reduce the impact on the bearing inner ring.