Abstract
An expert system for fault diagnosis of subsea blowout preventer (BOP) has been developed. According to the expert knowledge, common faults could be diagnosed and the system will be enlarged with the increasing knowledge. Fault tree analysis method is used to extract the fault diagnosis information. By this way, the layers of faults and the logical relationship among them can be shown clearly. Production rules are employed to represent the knowledge extracted from layers of fault trees. It’s convenient and easy to understand that the knowledge is connected together through its logic. The developed interfaces are friendly and easy to operate and the users can learn to use the system according to the one by one prompt and query the failure causes easily.
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