Simulation Research on Vibration Characteristics of Rotor of Vertical Motor

The virtual prototype model of motor rotor is established by Pro/Engineer software.Then the model is imported in Visual Nastran software,and the simulation of motor rotor about dynamics,stress/strain and mode is implemented using FEM.The analysis results of multi-stage natural vibration frequency,vibration mode,stress,strain,and displacement are presented.On this basis,the danger location and vibration mode are analyzed.The results indicate that the structure of present rotor fulfils the design requirement basically.At the same time,in order to meet the needs of different clients,the measure of changing the length of iron core is adopted.Through the simulation and structural comparison of motor rotors,the feasibility parameters design interval is obtained.The simulating results provide some references for vibration experiment and the optimization of stator structure.