The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Analysis of Mechanical Stress Due to Magnetic Force and Thermal Expansion in Brsushless Motor

브러시레스 전동기에서 전자기적 가진력 및 열에 의한 기계적 음력해석

  • 하경호 (창원대 공대 전기공학과) ;
  • 홍정표 (창원대 공대 전자공학과) ;
  • 이근호 (창원대 공대 전자공학과)
  • Published : 2002.05.01
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Abstract

This paper deals with the mechanical stress analysis due to electromagnetic forces and the optimal design of the link considering the stress. The link in Interior Permanent Magnet Brushless Motor(IPM) have influence on both mechanical and magnetic performance. The decrease of the link thickness serves to improve the torque, whereas this decreases the strength of link. Therefore, it is necessary to determine the appropriate link thickness considering electromagnetic forces and thermal expansion. The effects of the variation of link thickness on the mechanical stress and the electromagnetic performance are analyzed by the structural and electromagnetic Finite Element Method. In addition, the mechanical structure design of the link is performed to reinforce the mechanical strength against magnetic forces while preserving a food magnetic torque.

Keywords

References

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