Investigation of Cage and Bearing Instability in Despun Antenna Bearings Due to Changes in Lubricant Properties
Abstract
A computer program is being developed for the purpose of investigating cage and bearing instability in a despun antenna bearings. The program utilizes empirical inputs to ensure accuracy of the analytical modeling and comparison with experimental cage-dynamics data are being made to validate the computer predictions. As a result of the experimental and analytical studies conducted thus far, a stability criterion is being postulated. One form of this criterion, denoting the state of stability of the system, can be written as D sub p = 4 C sub mu to the 2nd power/m sub e C sub S where c sub mu related to lubrication parameters, M sub e is the effective cage mass, and C sub s is a cage material-geometry parameter. If D sub p is less than unity, the cage is predicted to be stable. Conversely, if D sub p is greater than unity, an instability should occur.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1975
- Accession Number
- ADB007253
Entities
People
- C. J. Pentlicki
- J. W. Kannel
- S. S. Bupara
Organizations
- Battelle Memorial Institute