Electromagnetic Force Induced Structural Vibration Analysis and Experiment of Brushless Direct Current Motors for Operating Speed Range

In this study, an electromagnetic force induced structural vibration for a brushless direct current (BLDC) motor with variable speed is performed using finite element analysis, as well experiment operating range. The 3-D entire model was used to predict the characteristics range of BLDC motor. To validate (FE) model, modal analysis compared results test. Then, speed, speeds are predicted electromagnetic-structural coupled method. and validated under same conditions. Finally, it found that FE can accurately reflect actual speed.