Fault-Diagnosis Expert System Of Rolling Electric Equipment Based On Reliability-Centered Maintenance

In modern industry, the whole production process is continuous, how to reduce the fault frequency, making all the equipment to run safely, smoothly after a long time is imperative question for every corporation. Past, people take accustomed measure to diagnose fault, which is no more fit, and expert system is a ripe theory, because it can cause great efficiency, it is used on fault-diagnosis.According with fault-diagnosis, people pay more and more attention to maintenance of equipment, the aim of diagnosis is to maintenance. Reliability-centered maintenance is a new means to maintain equipment, it pay more attention on the result of maintenance of equipment.Firstly, this paper introduces RCM theory and expert system, combine the expert system theory and RCM theory, and construct an applied and valid electric equipment fault-diagnosis expert system. Using logic reasoning , the system can give fault conclusion and disposal advice in a few minutes.During the realization of the ES, the whole system is divided into four system: Equipment Management System, On-line supervision system, Fault-diagnoses System, Preventive Maintenance System. Equipment Management System establish device card table and device information sheet for every device; On-line supervision system supervise the station of every device realtimely. According to device card table, device information sheet and device's station, fault model of every device is established, and by mechanical study and example study, the fault-diagnosis repository is established, using fault-tree analysis way and forward reasoning, fault-diagnoses System can real-time diagnose the fault of the device. Preventive Maintenance System can establish RCM logic analysis resolution card for every device, according to this card, the system can decide making what kind of prevention work to the device. And the system can calculate the P-F cycle of every device ,so the system can give all kinds of maintenance schedule automatically, which will avoid fault occur rootly.