Rheological texture in a journal bearing with magnetorheological fluids

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

卷:499

Article

Lampaert, Stefan G. E.¹  Quinci, Federico²  van Ostayen, Ron A. J.¹ 

[1] Delft Univ Technol, Mekelweg 2, NL-2628 CD Delft, Netherlands

[2] Bifrost Res & Dev BV, Molenvliet 34, NL-3961 MV Wijk Bij Duurstede, Netherlands

关键词: Magnetic fluid;    Bingham plastic;    Numerical modelling;    Magnetism;    Rheology;    Fluid mechanics;   

DOI  :  10.1016/j.jmmm.2019.166218

来源: Elsevier

【 摘 要 】

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.

【 授权许可】

Free