Vibration-based condition monitoring for the pump using fuzzy technique

Fuzzy technique has been widely used in the condition monitoring of the equipment. However, some limitations exist in the application of the technique due to the insufficient utilization of the information and the subjective expert judgment. The condition monitoring using fuzzy technique based on the vibration analysis is presented in this paper in order to solve these issues. Furthermore, A load modification theory proposed in this paper is centered on the signal preprocess. In addition, the degradation theory is utilized aiming at increasing the accuracy and reducing the error caused by subjective human judgment. The condition is evaluated on the basis of the degradation degree of the characteristic parameters and the fuzzy relation matrix. The application shows that this technique provides an efficient approach for the condition monitoring.