Effect of recess pressure ratio on the characteristics of a hybrid bearing /
(1992). Accuracy of prediction is analyzed by comparison
| Main Author: | |
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1994.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | (1992). Accuracy of prediction is analyzed by comparison a range of Pr from 0.4 to 0.7 with variation in operating and torque show little variation with recess pressure ratio. capacity can be maximized by a Pr value of 0.58 at the characteristics for an orificecompensated, annulus-fed hybrid clearance, recess pressure ratio, and recess to land area concentric position for hydrostatic bearings. Experimental discharge pressure. Rowe (1983) showed that the bearing load examined for a variation in the design parameters of radial for applications such as the Space Shuttle Main Engine High have shown good properties in testing and in consideration Hybrid (Combination Hydrostatic and Hydrodynamic) bearings increased. of prediction by HYDROBEARC to increase as the rotor speed is Predictions are made using HYDROBEARC developed by San Andres Pressure Oxygen Turbopump. However, properties have not been ratio while holding the other parameters constant. This recess pressure ratio is decreased. Whirl frequency ratio Recess pressure ratio Pr is defined as [ ] where Pr is the recess pressure, P, is the supply pressure, and Pa is the results showed the maximum load capacity to bear near 0.58 rotor speed are increased. Previous work found the accuracy speed and supply pressure. The direct damping increases as thesis presents the theoretical and experimental varied. Test results show that maximum stiffness occurs over water journal bearing for variation in recess pressure ratio. with decreasing accuracy as supply pressure and especially with experimental test results and found to be adequate, with slight variation as rotor speed and supply pressure are |
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| Item Description: | "Major subject: Mechanical Engineering". Vita. |
| Physical Description: | x, 63 leaves : illustrations ; 28 cm. Also available online. |
| Bibliography: | Includes bibliographical references. |