抄録
The dynamic characteristics of journal bearing lubricated with ferrofluid are investigated using the two-dimensional lubrication equation for finite journal bearing lubricated with ferrofluid. The stiffness coefficients and damping coefficients of the journal bearing are derived. The influences of the magnetic force, the angular moment of particles in ferrofluid on stiffness coefficients and damping coefficients are discussed. The results manifest that both the magnetic force and the angular moment of particles in ferrofluid affect the coefficients, and the smaller the eccentricity ratio of bearing is, or the lower the rotation speed of the shaft is, the larger the influences are.
