基于Fisher判别法的飞发故障分系统预测模型研究

A Study of Engine Failures Subsystem Prediction Model Based on Fisher Discriminant Method

通过Fisher判别法,在分析大量数据的基础上,建立了飞机发动机故障分系统判别预测模型,将各指标与故障分布结果联系起来,根据输入的参数可以预测故障将发生在发动机的哪一个系统中,最后再通过欧氏距离法验证判别结果的准确性。本模型可以较为准确预测发动机故障分布于哪个系统之中,对于发动机的维护和保养具有较好的指导意义。

Based on Fisher discriminant method and after analyzing a large amount of data, this paper build an airplane engine failures subsystem perdition model which relate all factors to the results of failures distributions. According to the input parameters, it is possible to predict the engine failures will happen in which system. Finally, the Euclidean distance method is used to verify the accuracy of the distribution results. The model can accurately predict which system the engine failures are distribute in, which will be a good guiding for engine maintenance.