【摘要】 建立了变速器齿裂故障、轴承故障的动力学模型 ,依据此模型仿真了齿裂故障、轴承内圈、外圈、滚动体故障的故障信号。采用平滑伪维格纳分布提取了这几种故障的特征。结果表明所建模型能提取出故障的特征更多还原

【Abstract】 The dynamic models for tooth crack and bearing defects in a transmission are developed. The fault signals of tooth crack and the defects of inner race, outer race and rolling elements of a bearing are picked up. Based on these signals, fault features are extracted by the method of smoothed pseudo Wigner Ville distribution.更多还原