Application of Hilbert-Huang transform and Mahalanobis-Taguchi System in mechanical fault diagnostics using vibration signals

摘要：

As for non-destructive condition monitoring method, vibration signals are measured and analyzed to diagnose mechanical faults. A method of mechanical fault levels identification is proposed in this paper using vibration signals. Firstly, Hilbert-Huang transform is used to analyze the signal. Fault information is obtained. And energy ratio of intrinsic mode functions is taken as fault characteristics. Secondly, different levels of fault are identified by applying Mahalanobis-Taguchi System. Standard Mahalanobis space is constructed. And slight and severe fault are diagnosed based on its Mahalanobis Distance to standard space. The method is validated by real rotating machinery seeded-fault-test vibration signals, results showed that this method performed well.

关键词： Fault Level Identification Hilbert-Huang transform Energy Ratio Intrinsic Mode Function Mahalanobis-Taguchi System Vibration Signals.

作者: Ren Jiangtao Cai Yuanwen Xing Xiaochen

作者单位: Company of Postgraduate Management,Academy of Equipment Command & Technology,Beijing,101416,China Department of Testing and Command,Academy of Equipment Command & Technology,Beijing,China

会议类型: 国际会议

会议名称: 2011 10th International Conference on Electronic Measurement & Instruments(第十届电子测量与仪器国际会议 ICEMI2011)

会议地点: 成都

会议语种:英文

页码: 1399-1403

在线出版日期: 2011-08-16（万方平台首次上网日期，不代表论文的发表时间）