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NASA-LLIS-1416
Lessons Learned – Cassini RWA Flight Anomaly Due to Extended Use at Slow Speed (2001)
Year: 2004
Abstract: Abstract:
Three years after launch, higher-than-normal drag was detected on one of the Cassini reaction wheels. The likely cause was lubricant dispersal after prolonged operation of the RWA at a very slow speed. Treat reaction wheels as a consumable resource, and minimize the time they are operated at very slow speeds.
Three years after launch, higher-than-normal drag was detected on one of the Cassini reaction wheels. The likely cause was lubricant dispersal after prolonged operation of the RWA at a very slow speed. Treat reaction wheels as a consumable resource, and minimize the time they are operated at very slow speeds.
Subject: bearing failure
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T17:55:26Z | |
| date available | 2017-09-04T17:55:26Z | |
| date copyright | 05/10/2004 | |
| date issued | 2004 | |
| identifier other | FJWEQCAAAAAAAAAA.pdf | |
| identifier uri | http://yse.yabesh.ir/std/handle/yse/178578 | |
| description abstract | Abstract: Three years after launch, higher-than-normal drag was detected on one of the Cassini reaction wheels. The likely cause was lubricant dispersal after prolonged operation of the RWA at a very slow speed. Treat reaction wheels as a consumable resource, and minimize the time they are operated at very slow speeds. | |
| language | English | |
| title | NASA-LLIS-1416 | num |
| title | Lessons Learned – Cassini RWA Flight Anomaly Due to Extended Use at Slow Speed (2001) | en |
| type | standard | |
| page | 3 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;2004 | |
| contenttype | fulltext | |
| subject keywords | bearing failure | |
| subject keywords | COBE RWA | |
| subject keywords | excessive torque | |
| subject keywords | Flight Equipment | |
| subject keywords | Flight Operations | |
| subject keywords | Ground Equipment | |
| subject keywords | Hardware | |
| subject keywords | low-RPM dwell | |
| subject keywords | lubricant failure | |
| subject keywords | lubricant loss | |
| subject keywords | momentum wheels | |
| subject keywords | Payloads | |
| subject keywords | Policy & Planning | |
| subject keywords | prolonged drag torque | |
| subject keywords | Risk Management/Assessment | |
| subject keywords | Safety & Mission Assurance | |
| subject keywords | SBA | |
| subject keywords | Software | |
| subject keywords | Spacecraft | |
| subject keywords | torque instability | |
| subject keywords | tribology |