Author(s): J. Antunes, M. Moreira & P. Piteau
In this paper we develop a non-linear dynamical solution for finite length bearings
and squeeze-film dampers based on a Spectral-Galerkin method.
In this approach the gap-averaged pressure is approximated, in the lubrication
Reynolds equation, by a truncated double Fourier series.
The Galerkin method,
applied over the residuals so obtained, generate a set of simultaneous algebraic
equations for the time-dependent coefficients of the double Fourier series for the
In order to assert the validity of our 2D-Spectral-Galerkin solution we present
some preliminary comparative numerical simulations, which display satisfactory
results up to eccentricities of about 0.9 of the reduced fluid gap HIR.
The so-called long and short-be...
Size: 322 kb
Paper DOI: 10.2495/CMEM030421
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