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Nasa lessons learned from space lubricated mechanisms
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Predmore, Roamer E. |
| Copyright Year | 2000 |
| Description | This document reviews the lessons learned from short-life and long life lubricated space mechanisms. A short-life lubricated mechanisms complete their life test qualification requirements after a few cycles. The mechanisms include the hinges, motors and bearings for deployment, release mechanisms, latches, release springs and support shops. Performance testing can be difficult and expensive but must be accomplished. A long-life lubricated mechanisms requires up to 5 years of life testing, or 10 to 100 years of successful flight. The long-life mechanisms include reaction wheels, momentum wheels, antenna gimbals, solar array drives, gyros and despin mechanisms. Several instances of how a mechanisms failed either in test, or in space use, and the lessons learned from these failures are reviewed. The effect of the movement away from CFC-113 cleaning solvent to ODC (Ozone-Depleting Chemical) -free is reviewed, and some of the alternatives are discussed. |
| File Size | 457456 |
| File Format | |
| Language | English |
| Publisher Date | 2000-04-01 |
| Access Restriction | Open |
| Subject Keyword | Mechanical Engineering Solvents Fatigue Life Performance Tests Accelerated Life Tests Chlorofluorocarbons Spacecraft Lubrication Aerospace Engineering Lubrication Systems Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
