Analysis and Research on Abnormal Vibration Faults of a Marine Gas Turbine
Abnormal phenomena of a marine gas turbine,and vibration monitoring was conducted to analyze the phenomena.After data processing and analysis,vibration fault characteristics were extracted.Based on the characteristics,the marine gas turbine was considered to have the problems of the rub-impact fault,rotor support bearing looseness and poor dynamic balance.The overhauling process of the faulty gas turbine was tracked,and the inspection results are basically consistent with the earlier analysis.According to the vibration fault characteristics and the overhauling results,the reason and mechanism of the abnormal vibration were discussed.The fault case is relatively rare in marine gas turbine,and the analysis and conclusions of relevant issues can serve as a reference for diagnosing similar faults.