Application of entropy theory in bearing fault diagnosis
In order to summarize the methods and achievements oi entropy theory in bearing fault diagnosis completely and systematically,the characteristics,advantages and disadvantages of various single-scale entropy and its optimization theories in processing bearing fault signals were sorted out and summarized in the context of time.The common parameters and influencing factors of various single-scale entropy algorithms were compared.The application and improvement of single-scale entropy and its optimization theory in bearing fault diagnosis in recent years were reviewed,and pointed out the advantages and disadvantages of various entropy algorithms.The development direction of entropy theory in bearing fault signal processing was prospected.