定性仿真技术在故障诊断中的应用

本文根据定性仿真理论，提出了一个故障定性诊断方法。该方法通过建立定性约束方程，分析故障对系统变量的影响，并据此构造出故障决策表。所提出的方法可用于系统知识部分未知情况下的故障诊断，文末以电阻网络的故障诊断为例证明了共有效性。

Application of Qualitative Simulation to Fault Diagnosis Tasks

A method of fault qualitative diagnosis is presented in this paper based on qualitative simulation theory.In the presented method, the interaction among process variables is presented by system model.Using this model the effect of fault on process variables is analysed.And the fault decision table is constructed.The presented method can be applied to diagnose fault for the situation where the knowledge about system is known partially. As an example,a resistance network has been taken to show the usefulness of the presented method.