Title :
Unbalanced Magnetic Force Calculation for Rotor and Stator Assembly in Permanent Magnet Motor with Large Diameter
Author :
Lee, Ji-Young ; Hong, Do-Kwan ; Woo, Byung-Chul ; Park, Doo-Hwan ; Choi, Yo-Han ; Nam, Byoung-Uk
Author_Institution :
Electr. Motor Res. Center, KERI, Changwon, South Korea
Abstract :
In this paper, formulas to calculate possible UMFs during assembly process are introduced in order to save calculation time and efforts without using a fully configured 3-dimensional (3-D) analysis model. To calculate the UMFs according to the degree of rotor eccentricity in every time that the rotor position is relatively changed to the stator position in axial direction, the proposed formulas are used with a fully configured 2-dimensional (2-D) model or 2-D and 3-D periodic analysis models. The reliance of the formulas is verified by comparing the results calculated by the formulas and showing the agreement. Then, assembly jigs are designed considering the calculated UMFs.
Keywords :
finite element analysis; machine theory; permanent magnet motors; rotors; stators; 2D periodic analysis models; 3D analysis model; 3D periodic analysis models; UMF; finite element analysis; fully configured 2-dimensional model; fully configured three-dimensional analysis model; permanent magnet motor; rotor assembly process; rotor eccentricity degree; rotor position; stator assembly process; stator position; unbalanced magnetic force calculation; Analytical models; Assembly; Computational modeling; Force; Rotors; Solid modeling; Stators;
Conference_Titel :
Electromagnetic Field Problems and Applications (ICEF), 2012 Sixth International Conference on
Conference_Location :
Dalian, Liaoning
Print_ISBN :
978-1-4673-1333-9
DOI :
10.1109/ICEF.2012.6310353
