关键词: 金属橡胶, 滚动轴承, 高速永磁电机, 转子动力特性

Abstract:

For the metal rubber' good characteristics on stiffness and damping, metal rubber was combined with rolling bearing. It was applied to a small high-speed permanent magnet motor rotor. Based on DyRoBeS, the dynamic characteristics of this combined bearing rotor were analyzed, and it was compared with the pure rolling bearing rotor. The analysis results showed that the metal rubber made the rotor critical speed reduced effectively and away from work speed. Also it made the rotor stable unbalance response significantly reduced. The influence curves of the critical speed of the rotor with the porosity, thickness and width of the metal rubber ring were analysized, it will provide reference for subsequent experimental study and engineering application research.

Key words: metal-rubber, rolling bearing, high-speed permanent magnet motor, rotor dynamic characteristics