대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1992년도 하계학술대회 논문집 B
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- Pages.593-596
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- 1992
사다리꼴 형태 부상용 전자석의 유효길이 평가 방법
EVALUATION METHOD FOR THE EFFECTIVE LENGTH OF TRAPEZOIDAL-TYPE ELECTROMAGNET
- Koo, Dae-Hyun (Power Apparatus Lab., KERI) ;
- Kang, Do-Hyun (Power Apparatus Lab., KERI) ;
- Shin, Pan-Seok (Power Apparatus Lab., KERI)
- 발행 : 1992.07.23
초록
An evaluation method for the effective length of electromagnet - which bas U-shape in frontview and trapezoidal in side view - is presented. Using 2D FEM, 2 analysing models are introduced for calculating effective length of the magnet ; the front model is using the normalized equi-pole face area of the magnet and the side model using the normalized equi-magnetic circuit. The ratio of the effective length to the length of bottom plate (core) comes out 1.25 - 1.30. In addition, 3D FEM analysis has been done and a proto-type test model is manufactured to verify the analysing method. The ratio by the experiment appears 1.2, which is reasonably in good agreement with the suggested numerical results.
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