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논문 기본 정보

자료유형
학술저널
저자정보
Xiaolong Yang (Guangxi University of Science and Technology) Ruibo Zhang (Guangxi University of Science and Technology) Guohong Wang (Guangxi University of Science and Technology)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.25 No.2
발행연도
2020.6
수록면
181 - 189 (9page)
DOI
10.4283/JMAG.2020.25.2.181

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초록· 키워드

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In order to obtain the maximum magnetic energy product in the sealing clearance of magnetofluid seal and improve its critical pressure, a diverging stepped magnetofluid seal with small clearance was designed based on the magnetic circuit design theory and the magnetofluid seal theory. Magnetic distribution and its theoretical critical pressure were calculated by the finite element method, which could prove the reliability of design method in the magnetic circuit. The paper studies the effects of axial clearance, radial clearance and pole tooth number on the pressure capabilities of diverging stepped magnetofluid seal in specific values, which were analyzed and compared in details. The results show that the magnetic flux leakage at the junction of the pole piece and the permanent magnet in the diverging stepped magnetofluid seal leads the theoretical critical pressure calculated by the magnetic circuit method to be lower than that calculated by the finite element method. Moreover, when the pole tooth number in the axial clearance is not less than the pole tooth number in the radial clearance, and the width of axial clearance is smaller than the height of radial clearance, the critical pressure of diverging stepped magnetofluid seal is better than that of the ordinary magnetofluid seal.

목차

1. Introduction
2. Magnetic Circuit Design of Diverging Stepped Magnetofluid Seal
3. Finite Element Method of Magnetic Field
4. Results Analysis and Discussion
5. Conclusion
References

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