Open AccessA Method Based on Initial-phase-point Analysis for Determining the Fault Mode of the Unbalanced Vibration of Turbine Rotor
Author(s) -
Xiaoqing Wen,
Liyi Shi,
Shaowei Qing,
Xiang Li,
Tao Deng,
Shihai Zhang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1865/3/032022
Subject(s) - rotor (electric) , fault (geology) , vibration , control theory (sociology) , bending , mode (computer interface) , point (geometry) , turbine , computer science , thermal , structural engineering , engineering , physics , acoustics , mathematics , mechanical engineering , artificial intelligence , geometry , control (management) , seismology , geology , operating system , meteorology
Rotor imbalance is one of the common faults of turbines, but traditional analysis methods are difficult to distinguish different fault modes, e.g. the original imbalance of rotor and the thermal bending of rotor. By introducing the concept of initial phase point, a rotor imbalance model is established and corresponding identification method for original imbalance and thermal bending is developed. Through the analysis and processing of practical cases, it is proved that this method is effective and can carry out the fault diagnosis of rotor unbalance accurately.