融入模糊推理的新型故障树诊断方法

A New Method of the Fault Tree Diagnosis Fusing FuzzyInference Engine

摘要:

在以预防为主、准确、高效武器装备故障诊断的指导思想下,针对故障树诊断法固有的优缺点属性,本文将产生式规则和模糊理论引入故障树中,设计了故障树的确定性诊断和不确定性推理的故障诊断推理方法,将模糊故障机理以“故障树”的方式进行表达,使故障树诊断从确定性诊断领域扩展到模糊诊断领域,并构建了相应诊断算法流程。通过仿真对比,说明了该故障诊断推理方法的正确性,同时还证明了该方法具备快速性、准确性,以及处理模糊故障机理问题的能力。

Abstract:

Due to guided thought of preventing first and efficient accuracy fault diagnosis for weapon equipment, aim at the deficiency of the fault tree diagnosis method, the production rule and the fuzzy theory were introduced to the fault tree. An fault diagnosis inference method which possesses confirmed and fuzzy capability for the fault tree was designed, the fuzzy fault mechanism was showed as “fault tree”, it can make the fault tree extend from the confirmed diagnosis field to the fuzzy diagnosis field, and relevant diagnosis algorithm was constructed. The result of comparison simulation showed that this inference method not only possesses speediness and veracity, but also can treat with the fuzzy fault mechanism.