Improved railway vehicle key assembly FMECA analysis method based on FAIC model

The invention discloses an improved railway vehicle key assembly FMECA analysis method based on an FAIC model, and belongs to the field of railway vehicle fault analysis. Firstly, in the aspect of preprocessing input data, subjective and objective comprehensive weighting is carried out on field expert evaluation information, and negative effects caused by too high subjectivity of field experts are reduced; and secondly, in the aspect of establishing a risk level assessment model, an analytic hierarchy process and a CRITIC method are introduced to establish an FAIC model, so that the credibility and practicability of an analysis result are improved. Compared with a traditional FMECA method, the method has the advantages that the accuracy of an analysis result is effectively improved, and argument support with higher credibility can be provided for a maintenance strategy of the railway vehicle key assembly in the actual maintenance process. 本发明公开了一种基于FAIC模型的改进的轨道车辆关键总成FMECA分析方法，属于轨道车辆故障分析领域。首先，在输入数据的预处理方面，对领域专家