飞机故障诊断专家知识库的构造

Structure of Expert Knowledge Database of Aircraft Failures

针对飞机知识的特点,给出了有关飞机故障、征兆与故障原因相互关系的三个定义;利用定义,采用逻辑型产生式规则建立了主要飞机故障的知识库;在总结和归纳专家诊断飞机故障经验的基础上,建立了飞机故障诊断推理框架,并给出了推理中的核心算法。实践表明,采用逻辑型产生式规则减少了规则的数量,提高了飞机故障诊断专家系统推理的速度和准确性。

To the characteristic of aircraft failure knowledge,the knowledge database of aircraft failure is structured based on logic production rules,which had structured by three definitions about the mutual relations failure,symptom and failure reason having given.Based on summarizing and concluding experience experts diagnose aircraft failures,the reasoning frame of aircraft failure diagnose and the core arithmetic of reasoning had structured.It proves that application of logic production rule can decrease the amount of rules and promote the reasoning speed and veracity of Aircraft failure Diagnose Expert System（DDES）.