The Analysis of Pressure Capability of Different Teeth Structures in Ferrofluid Seal

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Abstract:

Theoretical model of calculating magnetic field of typical ferrofluid sealing structures with magnetic vector potential method is built. Based on the theoretical model, magnetic field distribution of rectangular teeth, two-sides dilated shape and one-side dilated shape teeth structures with common other conditions were calculated using finite element method when the sealing gap was 0.1mm and 0.12mm. The comparison of their results with the same sealing gap showed that one-side dilated shape teeth structure had higher pressure capability than other shape teeth under reasonable design.

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Periodical:

Advanced Materials Research (Volumes 146-147)

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1278-1284

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October 2010

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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