Research on Vibration State Monitoring and Fault Diagnosis System of Chemical Rotating Machinery

Abstract

The signal processing technology is used for the feature extraction of vibration signals of rotating machinery and thus special information can be obtained to diagnose the operation status of rotating machinery. Firstly, the real-time acquisition of vibration signals is studied and a multi-channel real-time vibration signal acquisition system is constructed. Then, the Access database platform is built on this basis and an on-line monitoring and fault diagnosis system of operating status is established to explore the application in specific projects. This paper proposes the application of holographic spectroscopy technology, shafting spatial vibration mode, numerical integration of acceleration signals in the vibration state monitoring and fault diagnosis of chemical rotating machinery. The comparative analysis of rotor signals is conducted through the application of the constructed system and verifies the effectiveness and accuracy of the algorithm. It shows this system can effectively eliminate the slight error of the time domain to a great extent and the monitoring and diagnosis results are more accurate.