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자료유형
학술저널
저자정보
Fuxiang Hao (Xi’an University of Technology) Anle Mu (Xi’an University of Technology)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.28 No.2
발행연도
2023.6
수록면
162 - 171 (10page)
DOI
10.4283/JMAG.2023.28.2.162

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초록· 키워드

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A symmetric stepped magnetic fluid seal (SSMFS) structure with three magnetic sources is designed with the goal of improving the leakage problem under the large clearance rotary seal condition. The magnetic field distribution in the sealing clearance is analyzed using the finite element method when the radial and axial clearances are both 0.4 mm. The pressure capacity is calculated, and the effects of the height of permanent magnets, the length of the pole teeth, and the number of pole teeth are compared with those of diverging stepped magnetic fluid seal (DSMFS) and converging stepped magnetic fluid seal (CSMFS) with three magnetic sources. The numerical outcomes demonstrate that the SSMFS with three magnetic sources has a greater pressure capacity than the other two seal structures. The effects of magnetic fluid injection volumes, radial and axial clearances, various rotational speeds, and holding times are then investigated in tests to determine the pressure capacity of the SSMFS with three magnetic sources. The results are compared to those of the other two structures. The experimental date indicate that the SSMFS with three magnetic sources has a magnetic fluid injection saturation of around 7 ml. The advantages of the SSMFS structure become more clear with the modification of the radial clearance and axial clearance. With an increase in rotation speed and holding time, the pressure capacity of SSMFS with three magnetic sources has no obvious change, but it is obviously higher than that of the other two structures.

목차

1. Introduction
2. Theoretical Analysis of SSMFS with Three Magnetic Sources
3. Structure Design of SSMFS with Three Magnetic Sources
4. Numerical Analysis and Results Discussion
5. Experimental Study on SSMFS with Three Magnetic Sources
6. Conclusion
References

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