Research on Multi-objective Optimization for The Key Parameters of Modal Analysis on Induction Motor

In order to reduce electromagnetic noise of permanent magnet synchronous motors, it is necessary to analyze the modal of motor. In this paper, the modal of induction motor is studied by applying the key modal parameters such as the orthotropic material properties of core, contact stiffness factor, and the bearing stiffness. Compared with the actual modal test results finally, the modal simulation frequency of the motor error is kept within 5%.This method has guiding significance for modal simulation of similar structure motors.