Numerical modeling and experimental verification of compressible squeeze film pressure |
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Authors: | T.A. Stolarski |
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Affiliation: | aMechanical Engineering, School of Engineering and Design, Brunel University Uxbridge, Middlesex UB8 3PH, UK |
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Abstract: | The validity of using the Reynolds equation for compressible squeeze film pressure was tested with computational fluid dynamics (CFD). A squeeze film air bearing was instrumented with pressure sensors and non-contacting displacement probes to provide transient measurements of film thickness and pressure. The film thickness measurements also provided input parameters to the numerical prediction. However, numerical results showed a larger load capacity than those suggested from the experimental results. Furthermore, the nonlinear time averaged positive pressure described by the Reynolds equation was not evident in the experimental study. |
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Keywords: | Squeeze film Linear air bearing Film thickness Pressure Numerical prediction Experimental results |
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