Performance Analysis of Magnetic Hydrodynamic Tilted Bearing with Surface Roughness

Hsiu Lu Chiang; Tsu Liang Chou; Ching Been Yang

doi:10.4028/www.scientific.net/AMR.579.407

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 579Performance Analysis of Magnetic Hydrodynamic...

Performance Analysis of Magnetic Hydrodynamic Tilted Bearing with Surface Roughness

Abstract:

The performances characteristics of magnetic hydrodynamic tilted bearing with surface roughness lubricated with ferrofluid are studied in this study. To explore the effects of ferrofluid to the bearings, the Shah’s theoretical model and the modified items of characteristics related to magnetic ferrofluid are adopted. As the affections of surface roughness to the bearings, the stochastic Christensen Reynolds’ equation is applied; meanwhile, with the consideration of the non-zero mean α, variance σ and skewness ε. According to the results, comparing with the Newtonian fluids, the tilted bearing lubricated with magnetic ferrofluid has the higher built-up pressure distribution and load-carrying capacities. As the non-zero mean α of the surface roughness increases, the responding time decreases. On the other hand, increases the variation σ, decreases the responding time in longitudinal surface roughness; whereas, the transverse type has the inverse trend of responding time when variation increases.

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Periodical:

Advanced Materials Research (Volume 579)

Pages:

407-415

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.579.407

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Online since:

October 2012

Authors:

Hsiu Lu Chiang, Tsu Liang Chou, Ching Been Yang

Keywords:

Ferrofluid, Non-Zero Mean, Surface Roughness (SR), Tilted Bearing

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