Rough Set Theory Based Approach for Fault Diagnosis of Valves in Reciprocating Pumps
Shi Wengang · Zhongguo jixie gongcheng · 2002
This paper presents a rough set theory based approach for fault diagnosis of valves in reciprocating pumps. This approach can directly extract diagnosis rules for valves from the vibration signals having been processed by the wavelet packet transform. These rules are used to construct rule-based fault diagnosis system for the valves. The system can not only diagnose single fault valve but also identify multiple fault valves. The results of diagnosis show the effectiveness of this approach. The feasibility of this approach also indicates its potential applications on the fault diagnosis of other complex machines.