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Evaluations of Swaging Process for Rotor Core of Induction Motors II

유도전동기 회전자 제작시 압입작업 평가 II

  • Park, Sang-Chul (Department of Naval Architecture & Ocean Engineering, Koje College)
  • 박상철 (거제대학교 조선해양공학과)
  • Received : 2017.02.28
  • Accepted : 2017.06.09
  • Published : 2017.06.30

Abstract

This study evaluated the displacements of a Cu bar in the Y-direction and the relationship between swaging pressures and total contact forces to increase the productivity of the rotor core swaging process. Elastic-plastic numerical analyses of four different Cu bar shapes were performed with a constant swaging pressure to evaluate the displacements of the Cu bar in the Y-direction and the contact force distributions at the contact surfaces during the swaging process. Based on the numerical analysis results, the following conclusions were obtained. First, a simplified 2-dimensional cyclic symmetric analysis model was developed for the numerical analysis of the rotor core swaging process. Second, the final displacements of the Cu bar in the Y-direction were nearly the same as the change of the Cu bar size at a constant swaging pressure. Third, a linear relationship between the swaging pressures and the total contact forces, the so called resistance forces, was suggested.

Keywords

Contact Force;Cu Bar;Displacement;Numerical Analysis;Pressure;Rotor Core;Swaging

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