Journal of Magnetics

  • 제22권1호
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  • Pages.133-140
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  • 2017
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  • 1226-1750(pISSN)
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  • 2233-6656(eISSN)
한국자기학회 (The Korean Magnetics Society)
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Analysis of Split Magnetic Fluid Plane Sealing Performance

  • Zhang, Hui-tao (School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University) ;
  • Li, De-cai (School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University)
  • 투고 : 2016.05.18
  • 심사 : 2016.11.02
  • 발행 : 2017.03.31
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초록

Split magnetic fluid sealing is a combination of magnetic fluid rotary and plane sealing. Using the theory of equivalent magnetic circuit design as basis, the author theorized the pressure resistance performance of magnetic fluid plane sealing. To determine the pressure resistance of magnetic fluid plane sealing, the author adopted the method of finite element analysis to calculate the magnetic field intensity in the gap between plane sealing structures. The author also analyzed the effect of different sealing gaps, as well as different ratios between the sealing gap and tooth and solt width, on the sealing performance of split magnetic fluid. Results showed that the wider the sealing gap, the lower the sealing performance. Tooth width strongly affects sealing performance; the sealing performance is best when the ratio between tooth width and sealing gap is 2, whereas the sealing performance is poor when the ratio is over 8. The sealing performance is best when the ratio between the solt width and sealing gap is 4, indicating a slight effect on sealing performance when the ratio between the solt width and sealing gap is higher. Theoretical analysis and simulation results provide reference for the performance evaluation of different sealing equipment and estimation of critical pressure at interface failure.

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