Computer Science – Performance
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.591..299m&link_type=abstract
In: Proceedings of the 11th European Space Mechanisms and Tribology Symposium, ESMATS 2005, 21-23 September 2005, Lucerne, Switz
Computer Science
Performance
Equipment Mechanisms
Scientific paper
During the late 1980s EADS Astrium Ltd Stevenage (then BAe Space Systems) invested heavily in the development of a range of Reaction and Momentum Wheels to meet the needs of future scientific and communication satellites. These wheels covered a range of momentum capacities from 3 to 60 Nms with a maximum reaction torque capability of 0.3 Nm. The wheels underwent an extensive qualification test programme to prove launch survivability and operational performance across a range of temperatures. Part of this qualification test programme included placing several units on life test. These units have been running for around a decade and prove the design's capability to operate successfully at speeds up to 6000 rpm continously and to be frozen at -35°C for a period of time and then be awoken and operate successfully. In addition several of the wheels have been running in zero crossover mode, slow speed mode and at maximum microvibration levels. The paper will report on the evidence of those operating modes on the wheel performance from the results obtained. These wheels are successfully operating on ESA satellites; SOHO, XMM, Integral and Rosetta and the life test wheels together with the flight wheels have accumulated nearly 2m successful wheel operation hours (July 2005).
Lavèn R.
McMahon Peter
No associations
LandOfFree
Results from 10 years of reaction/momentum wheel life testing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Results from 10 years of reaction/momentum wheel life testing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Results from 10 years of reaction/momentum wheel life testing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1248354