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Solving the nonlinear problem of gas-lubricated hybrid circular bearings. Part II: unsteady case

Nedelcu S., Postelnicu A.

International Journal of Applied Mechanics and Engineering

2002

Vol. 7, no 2

465-478

In the paper, a dynamic analysis of gas-lubricated hybrid circular bearings is made. The mathematical model is the Reynolds equation in unsteady regimes along with the boundary conditions for a multiple connected domain. Within the hypothesis of a periodic relative motion of bearing surfaces, the method of small perturbations is used. The equations of the model are solved numerically using a difference finite method and finally, the curves of variation of the critical mass versus the eccentricity are obtained.