Rheological texture in a journal bearing with magnetorheological fluids

Journal article (2020)
Research Group
Mechatronic Systems Design (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2020 S.G.E. Lampaert, Federico Quinci, R.A.J. van Ostayen
DOI
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https://doi.org/10.1016/j.jmmm.2019.166218
Numerical modelling Rheology Fluid mechanics Magnetism Magnetic fluid Bingham plastic
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Published Date

2020

Language

English

Faculty

Mechanical, Maritime and Materials Engineering

Department

Precision and Microsystems Engineering

Research Group

Mechatronic Systems Design

Abstract

This paper discusses a new type of hybrid journal bearing in which a magnetorheological fluid is used in combination with local magnetic fields, such that the hydrodynamic and hydrostatic working regimes are not compromised. This demonstrates the potential of using the concept of rheological texture in bearings. The performance of this new type of bearing is assessed via Finite Element Modelling (FEM) in which the behaviour of the fluid film is described by the ideal Bingham plastic fluid model. Both the yield stress and the viscosity increase as a function of the magnetic field.