Micro Thermal Elastohydrodynamic Lubrication Analysis of Power Law Water-Based Ferrofluid Journal Bearing

Abstract:

Based on the Reynolds equation considering the temperature, the effection of non-newtonian and the magnetic field, the elastohydrodynamic lubrication(EHL) analysis of water-based ferrofluid journal bearing were carried out. The influence of roughness peak height and wavelength on the journal bearing surface with cosine roughness model were analysed. The results reveal that the pressure and film thickness of water-based ferrofluid wave apparently with roughness fluctuation; The fluctuation range of pressure and film thickness increase with the increase of roughness peak height, the minimal film thickness decreases; The pressure and film thickness fluctuation range become more and more sparse with the increase of roughness wavelength, the minimal film thickness increases.

• Periodical: Advanced Materials Research (Volumes 694-697)
• Pages: 543-546
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.694-697.543
• Online since: May 2013
• Authors: Xiu Jiang Shi, You Qiang Wang
• Keywords: EHL, Non-Newtonian, Roughness, Water-Based Ferrofluid

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