关键词: 混合式永磁调速器, 有限元模态分析, 振动, 轴向, 径向

Abstract:

The structure and working principle of permanent magnet speed governor, the structure of hybrid permanent magnet governor were introduced. The cause of vibration of the hybrid permanent magnet coupling speed governor was analyzed. The mathematical model of the axial conductor rotor for hybrid permanent magnetic coupling speed governor was established according to the basic formula of Sander thin shell theory. The expression of natural frequency was presented under the action of r=2 or higher order wave force. The vibration characteristic of conductor rotor for permanent magnetic coupling speed governor was simulated by finite element simulation software. The analysis shows that the radial conductor rotor plays a major role in the vibration amplitude of the conductor rotor, and the thickness of the radial conductor rotor is proportional to the amplitude. The overall amplitude of the conductor rotor is smaller than that of the radial and axial conductor rotor, and the interaction between the radial and axial conductor rotor is inhibited. The vibration test platform of hybrid permanent magnet governor was built and the conductor rotor vibration analysis diagram was obtained. The experimental data were consistent with the simulation results.

Key words: hybrid permanent magnet governor, finite element modal analysis, vibration, axial direction, radial direction