Abstract
Most recent research in foil-air bearing (FAB) rotor dynamic analysis has been limited to a simple bump foil model in which the individual bumps were modeled as independent spring-damper (ISD) subsystems. In the present paper, the dynamics of the corrugated bump foil structure are studied using the finite element (FE) technique. Based on the findings of this study, a modal model of the full foil structure is proposed. The model is then adapted into the rotordynamic FAB problem solution scheme, instead of the ISD model. Preliminary results under static and unbalance excitation conditions are correlated with the ISD foil model results and are shown to be technically sound.
| Original language | English |
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| Title of host publication | VIRM 11 - Vibrations in Rotating Machinery |
| Place of Publication | London |
| Publisher | Institution of Mechanical Engineers |
| ISBN (Print) | 978-0-9572374-8-3 |
| Publication status | Published - 15 Sept 2016 |