A Gaining Method for Fault Diagnosis Rules in the Civil Aircraft based on Rough Set Theory
基于粗糙集的民航飞机故障诊断规则获取方法

The traditional rules of fault diagnosis are originated from the airworthy documents,and cannot meet the demand.The multiplex knowledge models for fault diagnosis of the civil aircraft are built.It points out that the raw data can be obtained from Reliability reports,and can be preprocessed and reduced according to the Rough Set theory.Then the raw data are changed into new diagnosis rules.The method can improve the efficiency of fault diagnosis.The example produces some new rules,so the traditional methods that obtain the diagnosis rules are improved.And it shows the method is reliable.