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提出了基于时频分析的滚动轴承故障诊断方法。利用伪Wigner －rrrrrrrrnVille分布建立故障信息时频分布图谱，可有效识别不同故障模式，为滚rrrrrrrrn动轴承的在线检测提供了可行方法。
A rolling bearing fault diagnosis method based on time-frequency analysis is proposed. Using the pseudo Wigner - r r r r r r r n nVille distribution to establish the time-frequency distribution of fault information can effectively identify different failure modes, r r r n online bearing dynamic detection provides a feasible way.