航空发动机滑油诊断专家系统

本文介绍一个应用于航空发动机滑油系统故障诊断的专家系统 ,它是采用 Turbo Prolog语言在微机上实现的 ,便于维修现场使用。用户可采用对话方式或菜单选择方式输入故障证据 ,系统利用反向推理机制 ,按照知识库中的规则排序决定规则激发的优先权 ,对于推理结果还能够进行图形解释。该系统还提供了知识获取和知识库维护功能 ,构成了完整的故障诊断和咨询系统

AN EXPERT SYSTEM FOR AEROENGINE OIL MONITORING

Since oil monitoring is an effective diagnostic method in aeroengine troubleshooting,an expert system OSTM is developed,which means"Oil System Troubleshooting Master".Its goal is to help maintenance personnel to analyze the complex information acquired from the oil monitoring.This software is implemented in Turbo Prolog language and customized for use in portable personal computers.An exhaustive back-chain inference algorithm is adopted.The rule ignition superiority is determined by rule sequence in the knowledge base.Hence,common faults can be picked out at first.An explanation mechanism is included as well.Further,a menu query interface is programmed for quick manipulation of particular faults.For this purpose,the fault symptoms are classified according to their respective diagnostic domains.Moreover,knowledge acquisition and knowledge base management modules have been created.Until now,the diagnostic knowledge is mainly adopted from aircraft maintenance manual.