Sealed Brush Gear Motor (SBGM)- Qualification Testing with Focus on Random Vibration Testing
Abstract
During the axial direction random vibration test, in the frame of the qualification test campaign of the SBGM mechanism, a frequency shift has been observed indicating a stiffening effect.This observation led to a detailed investigation firstly by analysis and secondly, to confirm the root cause, by inspection while disassembling the mechanism down to its parts level after completion of the qualification test campaign. As outcome of the findings made during this investigation, improvements have been defined for an SBGM design evolution.This paper describes the investigation process, the findings as well as the defined way forward.
- Publication:
-
15th European Space Mechanisms and Tribology Symposium
- Pub Date:
- September 2013
- Bibcode:
- 2013ESASP.718E..52Z