A THEORETICAL AND EXPERIMENTAL INVESTIGATION OF A SPHERICAL GAS JOURNAL BEARING
Abstract
An externally pressurized spherical gas journal bearing, which has multiple spherically surfaced pads, was designed and fabricated for use as a three degree-of-freedom pivot which will support large loads (100 lbs). This inherently compensated pool type bearing design proved to be pneumatically unstable. The problem then was to determine a restrictor configuration for this bearing which would insure pneumatic stability and a large load carrying capacity. Restrictor configurations investigated were inherent compensating both with and without a pool and orifice compensating without a pool. A model bearing, which duplicates the lubricating film of a journal bearing pad, was constructed in order to obtain experimental data to verify the theoretical predictions. For this particular bearing configuration operating at large supply pressures (800 psig), it was found that an inherent compensating restrictor without a pool will ensure pneumatic stability and maximum load carrying capacity.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1967
- Accession Number
- AD0660546
Entities
People
- A. E. Hodapp Jr.
Organizations
- Arnold Engineering Development Complex