Abstract
A new bore design of a self-acting gas journal bearing has been conceived for enhancing the load carrying capacity and dynamic stability parameters as compared to conventional bump-foil bearing. The new bore design involves the synergistic presence of bump foil and rigid sector segments. The governing equations have been discretized employing FVM/FDM followed by the solutions of the algebraic equations using Gauss-Siedel iterative scheme. Based on the investigations performed with new bore, 5–260% increase in minimum film thickness and 80–175% improvement in stability parameters have been achieved for the range of operating parameters adopted in present study in comparison to conventional bump-foil journal bearing.
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