Vibration isolating properties of uncentralized squeeze-film damper bearings supporting a flexible rotor
- Cranfield Institute of Technology, Cranfield, Beds., England
- Military Technical College, Cairo, Egypt
An analytic approach to the study of uncentralized squeeze-film damper bearings in terms of nondimensional system parameters is presented. A theoretical analysis and experimental results demonstrate the ability of the bearing to reduce vibration amplitude and transmitted force produced by simple unbalance in the rotor or nearness to a critical speed. Four simultaneous nonlinear differential equations are developed to reach a steady state solution from a nondimensional form of the equations of motion. Predictions are made and compared with results from tests with a flexible rotor using various journals and outer squeeze-film rings during rotational speeds up to 17,000 rpm. Results are diagrammed and photographs of the orbits are presented. The close match between the predicted orbits of the disk and journal centers with the experimental data indicates that the theoretical method employed yields an accurate description of the true situation.
- OSTI ID:
- 5600489
- Report Number(s):
- CONF-810309-
- Journal Information:
- J. Eng. Power; (United States), Vol. 103; Conference: ASME gas turbine conference, Houston, TX, USA, 9 Mar 1981
- Country of Publication:
- United States
- Language:
- English
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