Abstract:

Introduces an overlimit bearing vibration of GE PG9171E heavyduty gas turbine after overhaul. It analyzes the possible causes for the bearing vibration, formulate the troubleshooting processing, summarizes the experience and provide reference in dealing with overlimit bearingvibration.

Key words:

heavyduty gas turbine, gas generator；shaft vibration；bearing seat vibration；bearing loading；bearing temperature, over vibration of bearing