RECENT PROGRESS ON THE DEVELOPMENT OF GAS-LUBRICATED BEARINGS FOR HIGH SPEED ROTATING MACHINERY
Problems that may be encountered when high-speed rotors are operated on gas-lubricated bearings are reviewed. Although certain of these difficulties are peculiar to the type of bearing that is used, all gas-lubricated bearings have common characteristics of low damping and relatively low spring rates. The influence of gas-lubricated bearings on balance requirements, critical rotor speeds, and the susceptibtlity of the rotor system to external excitation, especially when near a critical speed, is discussed. The tilting-pad journal bearing shows much promise for high-speed rotor applications and a comparison between theoretical and experimental performance is given for load-carrying capacity and optimum pivot position. The agreement between measured and predicted vaIues of film thickness was good. (auth)
- Research Organization:
- Franklin Inst., Philadelphia
- DOE Contract Number:
- AT(30-1)-2512
- NSA Number:
- NSA-17-010782
- OSTI ID:
- 4721378
- Report Number(s):
- TID-17756
- Resource Relation:
- Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- United States
- Language:
- English
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