Design Of Flat Pad Aerostatic Bearings With The
Aid Of Finite Element Analysis
Author(s)
S.M. Barrans & N. Bhat
Abstract
A need has been recognised for an aerostatic, flat pad bearing design procedure
that has the simplicity of use of design charts, whilst retaining the accuracy
offered by finite difference or finite element models. To meet ths requirement a
finite element code has been combined with the automatic mesh generation
procedure described here. The results provided by this code for a range of
bearing designs are also presented. It is shown that the identification of an
optimum pressure ratio is more complex than with journal bearings, due to the
lack of a natural, concentric position and the variation in pressure ratio over a
number of orifices. It is concluded that the multi-criteria nature of the bearing
design problem should be taken into account at an early stage. A code capable
of determining a Pareto optimal but criteria constrained set of bearing designs
Keywords
Related Book
Other papers in this volume
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