Pressure Measurements and Flow Visualization in a Squeeze Film Damper Operating With a Bubbly Mixture

[+] Author and Article Information
Luis San Andrés

Mechanical Engineering Department, Texas A&M University, College Station, TX 77843

Sergio E. Diaz

Laboratorio de Dinamica de Maquinas, Universidad Simon Bolivar, Caracas, Miranda, 1080-A

J. Tribol 124(2), 346-350 (Feb 05, 2001) (5 pages) doi:10.1115/1.1402133 History: Received September 14, 2000; Revised February 05, 2001
Copyright © 2002 by ASME
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Schematic view of SFD test rig
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Photographs of SFD test rig and video camera setup. (Left : test rig with adequate light source and camera. Right : Close up of SFD test section showing striated flow field.)
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Dynamic peak-peak pressures versus air/oil volume fraction at 0, Z1, and Z2. Whirl frequency 8.33 Hz.
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Development of the dynamic Pressure field versus air volume fraction (λ) at (0,Z2). Whirl frequency 8.33 Hz.
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Contour plot of squeeze film pressure versus time for increasing air volume fractions and film thickness at location (0,Z2)
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Images of flow recorded by high-speed digital camera. Frames correspond to marked circles on Fig. 4.
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Period averaged pressure field and film thickness at (0,Z2) versus time for volume fraction λ=0.854




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