A Comprehensive Fault Diagnosis System and Quality Evaluation Model for Electromechanical Products by Using Rough Set Theory
Electromechanical product is an important part of mechanical and electrical control system, and its quality plays a key role in the normal operation process. In this paper, a comprehensive fault diagnosis system and quality evaluation model for electromechanical products is analyzed. Firstly, the feature extraction of different faults is carried out, and the fault features of electromechanical products are simplified by using the approximation set information system properties of rough set theory. Secondly, the subjective weight index model is determined based on the rough information system properties of rough set theory. Then, the evaluation weight of each index of quality evaluation model for electromechanical products is obtained by the importance measurement of information system properties. Finally, this paper illustrates that the results of fault diagnosis and quality evaluation of ball valves as well as the availability of scientific.
KeywordsFault diagnosis system Quality evaluation model Electromechanical products Rough set
This work was supported by the National Natural Science Foundation, China (No. 71671130, No. 71301120, No. 51705048), the postdoctoral program of Zhejiang University & Zhejiang Linuo Fluid Control Technology Company of China (No. 174102), the key project of teaching reform of Wenzhou University (No. 15jg07), engineering practice education center of Wenzhou University & Zhejiang Linuo Fluid Control Technology Company of China.