Design and test of a Pareto optimal flat pad aerostatic bearing

Nikhil Bhat, Simon M. Barrans

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


This paper discusses the design and assessment of a Pareto optimal aerostatic flat pad bearing. The design of such bearings is a multi-variable, multi-criteria problem. The criteria used were load capacity, flow rate and stiffness. The design technique does not rely on weighting the criteria at the outset but allows a final design to be selected from the Pareto set. The final design was assessed using an automated experimental rig to obtain load/deflection data, mass flow rates, and film pressure profiles for a range of gap heights. The experimental performance of the Pareto optimal bearing is shown to compare well with the theoretical prediction at lower gap heights.

Original languageEnglish
Pages (from-to)181-188
Number of pages8
JournalTribology International
Issue number3
Early online date27 Sep 2007
Publication statusPublished - 1 Mar 2008


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