Stepwise Diagnosis for Rotating Machinery Using Force Identification Approach

Abstract EN

Machine condition monitoring and diagnosis have become increasingly important, and the application of these processes has been widely investigated.

The authors previously proposed a stepwise diagnosis method for a beam structure.

In that method, the location of the abnormality is first estimated using the force identification approach, and then the cause of the abnormality is identified.

In this study, the stepwise diagnosis method was improved specifically for rotating machinery.

The applicability of the proposed method was checked by using the experimental data.

In the case of a rotor system with unbalance, it was shown that the location of the abnormality and its severity could be identified, and, in the case of a rotor system with stationary rubbing, the location of the abnormality could be accurately identified.

Therefore, it was confirmed that the proposed diagnostic method is feasible for actual application.