| 摘要 |
The invention concerns a method for detecting mechanical faults in a rotating machine which involves acquiring (ET1) measurement signals from vibration sensors fitted to non-rotating components of the machine for several operating cycles of the machine, categorising the measurement signals by speed range, determining (ETS2), for each vibration sensor, a distribution of the energy levels of the measurement signals of a given speed range in given angular and frequency bands, generating (ETS3) a current vibration signature per speed range for each vibration sensor from the distribution of energy levels determined in this way, and comparing (ETS4) the current vibration signature for a given speed range and a given vibration sensor to a reference vibration signature established for each vibration sensor in a fault-free mode of the rotating machine. |
