Squeeze Film Damper Bearing Experimental Vs Analytical Results For Various Damper Configurations.
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Higher speeds, longer shafts, and increased power has made squeeze film damper (SFD) bearing performance increasingly more important to control both synchronous and subsynchronous fibration in rotating machinery. SFD bearing performance from a en stage high pressure barrel centrifugal compressor that has been specifically modified for SFD bearing development is presented. SFD bearing performance is investigated for both synchronous imbalance response and rotordynamic instability. A comparison is made of experimental and analytical results for a hydrodynamic ive shoe tilt pad bearing supported by an 0 ring centered damper eccentricity, e = 0.0 and e = 0.6), mechanically spring centered damper (e = 0.0 and e = 0.8), a bottom resting damper (e = 1 .0), end a standard nondamper (rigid support). The results of the tests clearly show that a properly designed SFD is an effective means of reducing the severity of critical speeds and improving the stability threshold of rotor bearing systems.
Kuzdzal, Mark J.; Hustak, Jerry F. (1996). Squeeze Film Damper Bearing Experimental Vs Analytical Results For Various Damper Configurations.. Texas A&M University. Turbomachinery Laboratories. Available electronically from