1.天津大学 机械工程学院力学系，天津 300072;2.天津市非线性动力学与混沌控制重点实验室，天津 300072
1.Department of Mechanics，Tianjin University，Tianjin 300350，China;2.Tianjin Key Laboratory of Nonlinear Dynamics and Chaos Control，Tianjin 300350，China
The project supported by the National Natural Science Foundation of China (11372211,11672349)
The radial vibration of a switched reluctance motor (SRM) is more prominent than other type of motors, due to its inherent double salient structure and magnetic saturation. In this paper, the radial magnetic vibration coupling analysis was carried out by means of multiphysics simulations. Firstly, when the motor runs in three- and six-phase modes, the time history of radial magnetic force density in each stator teeth at rated speed was simulated by 2D electromagnetic finite element method (FEM), respectively. Then, natural frequencies and modes were obtained by solving the characteristic equation of the stator. Finally, the magnetic force density was applied onto the stator tooth as an external excitation, and the deformation of the whole stator was solved by 3D structure transient analysis. The accelerations of intermediate nodes on the outerwall of the stator were analyzed both in time and frequency domains. The results show that square deformation is the dominant mode under the three-phase excitation and elliptical deformation is the dominant mode under the six-phase excitation. The acceleration amplitude of square deformation is smaller than that of elliptical one.
王峰,吴志强,李亚杰,王远岑.多物理场仿真开关磁阻电机定子的径向电磁振动[J].动力学与控制学报,2020,18(4):61~69; Wang Feng, Wu Zhiqiang, Li Yajie, Wang Yuancen. RADIAL VIBRATION SIMULATION OF THE STATOR IN SWITCHED RELUCTANCE MOTOR BY MULTIPHYSICS METHOD[J]. Journal of Dynamics and Control,2020,18(4):61-69.复制