Analysis on the Viscous Pumping in a Magnetic Fluid Seal Under a Rotating Load and the Seal Design

Article Japanese OPEN
長屋, 幸助 ; 大沼, 浩身 ; 佐藤, 淳 (1990)
  • Publisher: 日本機械学会
  • Journal: 日本機械学會論文集. C編 (issn: 0387-5024, vol: 56, pp: 963-970)
  • Subject: Machine Element | Magnetic Fluid Lubrication | Viscous | Magnetic Fluid Seal | Seal Pressure | Reynolds' Equation | Pumping
    arxiv: Physics::Instrumentation and Detectors | Physics::Medical Physics | Physics::Fluid Dynamics | Computer Science::Other

This paper discusses effects of viscous pumping in a magnetic fluid seal under a rotating load. The Reynolds equation was presented for the seal based on magnetic fluid mechanics, and the expressions for obtaining pressures in the seal, eccentricities of the rotating shaft due to the viscous pumping and seal pressures were given. Numerical Calculations were carried out for some sample problems, and the effect of magnetic flux densities on the pressure in the seal and the seal pressures were clarified.
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