해석적 방법을 이용한 반경방향 영구자석을 갖는자기 스퍼 기어의 토크특성해석 (Torque Analysis of Magnetic Spur Gear with Radial Magnetized Permanent Magnets based on Analytical Method)

서지정보

· 발행기관 : 대한전기학회
· 수록지 정보 : 전기학회논문지 / 64권 / 4호 / 545 ~ 551페이지
· 저자명 : 민경철, 최장영, 성소영, 박종원

초록

This paper deals with torque analysis of magnetic spur gear with radial magnetized permanent magnets based onanalytical method. The analysis is implemented in three parts: First, on the basis of magnetic vector potential and atwo-dimensional (2D) polar-coordinate system, the magnetic field solution due to permanent magnet of source gear areobtained. And by using derived magnetic field solutions, the analytical solutions for external magnetic field distribution whichaffects load gear are obtained. Second, by using coordinate conversion, external magnetic field which is on the primarycoordinate system is converted to the secondary coordinate system. Finally, the load gear is reduced to equivalent currentdensities, and the torque is computed on these currents in the external field of the source magnet. These analytical resultsare validated by comparing with the 2-D finite element analysis (FEA).

영어초록

This paper deals with torque analysis of magnetic spur gear with radial magnetized permanent magnets based onanalytical method. The analysis is implemented in three parts: First, on the basis of magnetic vector potential and atwo-dimensional (2D) polar-coordinate system, the magnetic field solution due to permanent magnet of source gear areobtained. And by using derived magnetic field solutions, the analytical solutions for external magnetic field distribution whichaffects load gear are obtained. Second, by using coordinate conversion, external magnetic field which is on the primarycoordinate system is converted to the secondary coordinate system. Finally, the load gear is reduced to equivalent currentdensities, and the torque is computed on these currents in the external field of the source magnet. These analytical resultsare validated by comparing with the 2-D finite element analysis (FEA).

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