Restricted accessResearch articleFirst published online 1977-6
A Numerical Solution of the Dynamic Characteristics of an Aerostatic,Porous Thrust Bearing Having a Uniform Film Subjected to Linear Axial Load Variations
A numerical method of solution is presented for the pressure distribution in the uniform air film of a porous thrust bearing in which the top plate is subjected to vertical vibrational motion. From this pressure distribution it is possible to compute the bearing's dynamic characteristics, the knowledge of which is essential for the design of these bearings if unstable operating regions are to be avoided.
Get full access to this article
View all access options for this article.
References
1.
TaylorR.LewisG. K. ‘Experience relating to the steady performance of aerostatic porous thrust bearings’, Proc. Instn mech. Engrs1975189, 22–75.
2.
ScheideggerA. E.The physics of flow through porous media1963 (University of Toronto Press).
3.
TaylorR.The steady state and dynamic performance of gas lubricated uniform film porous thrust bearings Ph. D. Thesis, University of Aston in Birmingham, March 1975.
4.
PeacemanD. W.RachfordH. H.Jnr. ‘The numerical solution of parabolic and elliptic differential equations’, J. Soc. ind. appl. Math.19553 (No. 1).
5.
RoscoeD.The numerical solution of the three-dimensional viscous Navier-Stokes equations Ph. D. Thesis, Department of Mathematics, University of Aston in Birmingham, 1975.
6.
TaylorR.LewisG. K. ‘Steady state solutions for an aerostatic thrust bearing with an elastic porous pad’, 6th Int. Gas Bearing Symp. 1974, Paper C5.
7.
PanC. H. T. ‘The gaseous squeeze-film at moderately large squeeze numbers’, J. bas. Engng, Trans. A. S. M. E. 1970, 766–781.
8.
ChenDah Sun. ‘Stability analysis of an externally pressurised gas lubricated porous thrust bearing’, Trans. A. S. M. E. 1973, Paper 73-lub-K.
9.
PeacemanD. W.RachfordH. H.Jnr. ‘Calculations of unsteady gas flow through porous media’, Trans. A. I. M. M. E.1953198, 79.