Modal analysis and experiment study of magnetically suspended reaction flywheel

The magnetically suspended reaction flywheel with angular momentum 50 Nms was discussed. Its rotating speed was from -5000 rpm to 5000 rpm. The modal analysis results of the reaction wheel's stator, rotor and system were described. With the finite element method, the effect of the magnetic bearing was simulated with the COMBINE14 element. The results are proved to be reasonable and accurate after the modal test experiment is finished. The modal analysis results of the magnetically suspended reaction wheel are foundational for the vibration characteristics study, select of the control parameters and the optimization of the system.