Free boundary of lubricant film in ferrofluid journal bearings

摘要: The growing interest in ferrofluid bearings is caused by their excellent self-sealing ability. understanding of behaviour film boundary adjacent to ambient air crucial for the proper design sealing unit bearings. This paper first attempt predict shape a free presence static load and magnetic field. Analysis involves simultaneous integration Reynolds equation using perturbation technique with respect shaft eccentricity. Magnetic field shown flatten boundaries as well reduce cavitation region; both effects diminishing lubricant leakage.