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1.北京工业大学 先进制造技术北京市重点实验室,北京 100124
2.山东省科学技术情报研究院,济南 250101
胥永刚,男,1975年生,河北沧州人,博士,教授;主要研究方向为机械故障诊断、现代信号处理方法等;E-mail:xyg_1975@163.com。
张坤(通信作者),男,1991年生,河北张家口人,博士,讲师;主要研究方向为机械故障诊断、现代信号处理方法等;E-mail:zkun212@163.com。
收稿日期:2023-09-22,
修回日期:2023-12-06,
纸质出版日期:2025-06-15
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胥永刚,张翼飞,孙国栋,等. 基于时域同步平均的Circular图分析方法及齿轮故障智能诊断研究[J]. 机械强度,2025,47(6):11-16.
XU Yonggang,ZHANG Yifei,SUN Guodong,et al. Research on Circular plot analysis method and gear fault intelligent diagnosis based on time synchronous averaging[J]. Journal of Mechanical Strength,2025,47(6):11-16.
胥永刚,张翼飞,孙国栋,等. 基于时域同步平均的Circular图分析方法及齿轮故障智能诊断研究[J]. 机械强度,2025,47(6):11-16. DOI: 10.16579/j.issn.1001.9669.2025.06.002.
XU Yonggang,ZHANG Yifei,SUN Guodong,et al. Research on Circular plot analysis method and gear fault intelligent diagnosis based on time synchronous averaging[J]. Journal of Mechanical Strength,2025,47(6):11-16. DOI: 10.16579/j.issn.1001.9669.2025.06.002.
齿轮Circular图是用于与时域同步平均(Time Synchronous Averaging
TSA)相结合的一种结果呈现方法,可以将TSA提取到的齿轮啮合振动波形直观、清晰地展现出来。针对齿轮Circular图绘制参数设置和其缺少量化指标的问题,提出了用于波形边缘识别的
F
i
指标和基于Hu氏不变矩的
Y
i
指标。首先,使用TSA算法提取出齿轮啮合振动信号,通过计算最小
F
i
指标确定振动信号波形的上、下边缘;其次,利用上、下边缘参数绘制齿轮Circular图;再次,将齿轮Circular图分割为4个部分,通过计算分割后图片的Hu氏不变矩得到齿轮Circular图的
Y
i
指标;最后,基于从齿轮Circular图中提取出的
Y
i
和
F
i
指标,使用K最近邻(K-Nearest Neighbor
KNN)分类器对齿轮振动信号进行分类。仿真信号及齿轮断齿、裂纹故障信号的处理结果表明了该方法的有效性。
Gear’s Circular plot is a result presentation method which needs to be combine with time synchronous averaging (TSA)
which can clearly display gear meshing vibration waveform extracted by TSA. Aiming at the problem of parameter setting of gear’s Circular plot and lack of the quantitative index
F
i
index for waveform edge recognition and
Y
i
index based on Hu-moments were proposed. Firstly
TSA algorithm was used to extract the gear meshing vibration signal
and the upper and lower edges of the vibration signal waveform were determined by calculating the minimum
F
i
index.Secondly
Circular plot of gears were drawn by the upper and lower edge parameters. Then
the Circular plot of the gear was divided into four parts
and
Y
i
index of the Circular plot was obtained by calculating Hu-moments of the picture after segmentation. Finally
based on the
Y
i
and
F
i
indices extracted from the gear Circular plot
a K-nearest neighbors (KNN) classifier was utilized to classify the gear vibration signals. The results show that there is a significant difference between the
Y
i
and
F
i
indices of the vibration signals of normal gears and those of abnormal gears. By combining with the KNN classifier, it is possible to distinguish between normal and abnormal gear signals, which proves the effectiveness of this method.
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