针对旋转机械应用了灰色关联故障诊断方法,并针对灰色关联分析中分辨系数的取值进行了研究,介绍了其取值准则的一种,对于“小样本,贫信息,不确定性”问题,灰色关联理论具有处理能力强,计算复杂度低等优点。仿真实例表明灰色关联故障诊断方法十分有效。 A gray relational fault diagnosis method is applied to the rotating machinery, and the value of the resolving power in the gray relational analysis is studied. A criterion of its value criterion is introduced. For the “small sample, poor information, uncertainty” Problem, gray relational theory has the advantages of strong processing power and low computational complexity. The simulation example shows that the gray relational fault diagnosis method is very effective.