轴承故障诊断特征参数选取研究

Study on Selection of Characteristic Parameters for Bearing Fault Diagnosis

特征提取是轴承故障诊断的关键步骤,而特征参数的选取直接影响着特征提取的效果。本文从时域、频域、时频域多角度进行分析,提出了特征参数的选取准则,构建特征参数评价体系,为下一步的故障识别提供有力支撑。

Feature extraction is the key step of bearing fault diagnosis,and the selection of feature parameters directly affects the effect of feature extraction.In this paper,the time domain,frequency domain and time-frequency domain are analyzed,and the selection criteria of feature parameters are proposed.The evaluation system of feature parameters is constructed to provide strong support for the next step of fault identification.