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Vibration effects of the space shuttle main engine high pressure oxidizer turbopump bellows
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Harp, J. A. |
| Copyright Year | 1978 |
| Description | A welded metal bellows was subjected to a series of vibration tests in a 400 psi oxygen environment to evaluate the effects of the bellows convolutes rubbing on the damper ring in the high pressure oxidizer turbopump of the space shuttle main engine. The bellows was subjected to approximately 2 million cycles at 0.007 in. double amplitude displacement during this series of tests, at a frequency of 400 Hz. Intrumentation of the test specimen revealed no significant heat buildup caused by the rubbing of the bellows convolutes on the damper ring. A final destruct test was made to determine if a fire would result if the bellows ruptured in the 400 psi oxygen environment, thus exposing a fresh metal surface. The vibration input was changed to 0.8 in. double amplitude displacement at 20 Hz to intentionally rupture the bellows. Failure occurred after 2.5 sec; no fire or heat buildup was encountered. |
| File Size | 4532645 |
| Page Count | 56 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780011247 |
| Archival Resource Key | ark:/13960/t3jx35m1n |
| Language | English |
| Publisher Date | 1978-02-01 |
| Access Restriction | Open |
| Subject Keyword | Space Transportation Bellows Turbine Pumps Space Shuttles Vibration Effects Vibration Tests Engine Parts Oxidizers High Pressure 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 |
