Preload conditions in turbomachinery equipment, likely caused by misalignment, are evident in orbit and full spectrum data. The author seeks supporting data to strengthen the analysis.
PRELOAD PATTERN SHUTDOWN DATA OF STG
Preload conditions are commonly found in turbomachinery equipment that uses journal bearings or friction bearings,
in the case that I found, I think that this preload condition is very clear from the orbit data, full spectrum and when compared with other equipment, the orbit and full spectrum patterns are very different, I think this preload is caused by a misalignment condition.
For friends who have encountered cases like this, can you share any supporting data we need to strengthen the results of this analysis, thank you
NOTE:
Steam turbine generator shutdown (coasdown) data