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Film thickness measurement for spiral groove and rayleigh step lift pad self-acting face seals
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Dirusso, E. |
| Copyright Year | 1982 |
| Description | One Rayleigh step lift pad and three spiral groove self-acting face seal configurations were tested to measure film thickness and frictional torque as a function of shaft speed. The seals were tested at a constant face load of 73 N (16.4 lb) with ambient air at room temperature and atmospheric pressure as the fluid medium. The test speed range was from 7000 to 17,000 rpm. The measured film thickness was compared with theoretical data from mathematical models. The mathematical models overpredicted the measured film thickness at the lower speeds of the test speed range and underpredicted the measured film thickness at the higher speeds of the test speed range. |
| File Size | 1409703 |
| Page Count | 22 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19830002856 |
| Archival Resource Key | ark:/13960/t2x39mf7t |
| Language | English |
| Publisher Date | 1982-10-01 |
| Access Restriction | Open |
| Subject Keyword | Aircraft Propulsion And Power Seals Stoppers Gas Bearings Torque Friction Clearances Grooves Film Thickness Shafts Machine Elements Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
