Modal Test and Simulation Optimization of Locomotive Traction Motor Rotors
The rotor of traction motor is the core of the motor rotation,and the natural frequency design of the rotor should avoid the actual operating frequency and speed.The finite element analysis method based on software is currently the most widely used natural frequency calculation method in the design phase,which affects the accuracy of calculation results,including material parameters,actual contact states between com-ponents,etc.Actual modal testing was conducted using the LMS company's acquisition system,and the fi-nite element analysis method of Ansys was used to calculate the natural frequency of the rotor considering the actual contact state between the guide bar and end ring,guide bar and iron core,iron core and shaft.Based on the acquisition system of LMS company in Belgium,actual modal testing was conducted to verify the ef-fectiveness of Ansys calculation results,provided a useful reference for further improving the modal simula-tion accuracy of the traction motor rotor,and provided a basis for further improving the rotor structure and ensuring that the rotor will not have resonance in actual operation.
traction motor squirrel-cage rotorfinite element analysismodal testnatural frequencyreso-nance
万方数据
维普
