DYNAMIC STABILITY ASPECTS OF CYLINDRICAL JOURNAL BEARINGS USING COMPRESSIBLE AND INCOMPRESSIBLE FLUIDS
Technical Report
·
OSTI ID:4211110
Solutions of Reyuolds equation are presented for cylindrical journal bearings in which the velocity of the journal center is considered, however, the inentia terms are neglected. Solutions are obtained for both compressible and incompressible fluids. Analysis of the steady state forces that exist in compressible fluid, externaly-pressurized cylindrical journal bearings with one plane of feeding is also included. From these analyses the gradients of the radial and tangential forces with respect to displacement and velocity are obtained. The equations of motion for small and large oscillation in terms of these forces and gradients are set up, and stability criteria are established for small oscillations and for large oscillations of a massless rotor. Calculations for threshold of instability are given and, where existing experimental data are available, theoretical predictions are compared with results attained in practice. (auth)
- Research Organization:
- General Electric Co. General Engineering Lab., Schenectady, N.Y.
- NSA Number:
- NSA-14-005287
- OSTI ID:
- 4211110
- Report Number(s):
- NP-8205
- Country of Publication:
- United States
- Language:
- English
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