Abstract
In this paper, an accurate envelope analysis algorithm is developed for a wireless sensor node. Since envelope signals employed in condition monitoring often have narrow frequency bandwidth, the proposed algorithm down-samples and cascades the analyzed envelope signals to construct a relatively long one. Thus, a relatively higher frequency resolution can be obtained by calculating the spectrum of the cascaded signal. In addition, a 50% overlapping scheme is applied to avoid the distortions caused by Hilbert transform based envelope calculation. The proposed method is implemented on a wireless sensor node and tested successfully for detecting an outer race fault of a rolling bearing. The results show that the frequency resolution of the envelope spectrum is improved by 8 times while the data transmission remains at a low rate.
| Original language | English |
|---|---|
| Title of host publication | Vibration Engineering and Technology of Machinery - Proceedings of VETOMAC X, 2014 |
| Publisher | Kluwer Academic Publishers |
| Pages | 765-775 |
| Number of pages | 11 |
| Volume | 23 |
| ISBN (Electronic) | 9783319099170 |
| DOIs | |
| Publication status | Published - 2015 |
| Event | 10th International Conference on Vibration Engineering and Technology of Machinery - Manchester Conference Centre, Manchester, United Kingdom Duration: 9 Sep 2014 → 11 Sep 2014 Conference number: 10 http://www.mace.manchester.ac.uk/our-research/seminars/vetomac-x-2014/ (Link to Conference Details) |
Conference
| Conference | 10th International Conference on Vibration Engineering and Technology of Machinery |
|---|---|
| Abbreviated title | VETOMAC 2014 |
| Country | United Kingdom |
| City | Manchester |
| Period | 9/09/14 → 11/09/14 |
| Internet address |
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A novel method to improve the resolution of envelope spectrum for bearing fault diagnosis based on a wireless sensor node. / Feng, Guojin; Zhen, Dong; Tian, Xiange; Gu, Fengshou; Ball, Andrew D.
Vibration Engineering and Technology of Machinery - Proceedings of VETOMAC X, 2014. Vol. 23 Kluwer Academic Publishers, 2015. p. 765-775.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
TY - GEN
T1 - A novel method to improve the resolution of envelope spectrum for bearing fault diagnosis based on a wireless sensor node
AU - Feng, Guojin
AU - Zhen, Dong
AU - Tian, Xiange
AU - Gu, Fengshou
AU - Ball, Andrew D.
PY - 2015
Y1 - 2015
N2 - In this paper, an accurate envelope analysis algorithm is developed for a wireless sensor node. Since envelope signals employed in condition monitoring often have narrow frequency bandwidth, the proposed algorithm down-samples and cascades the analyzed envelope signals to construct a relatively long one. Thus, a relatively higher frequency resolution can be obtained by calculating the spectrum of the cascaded signal. In addition, a 50% overlapping scheme is applied to avoid the distortions caused by Hilbert transform based envelope calculation. The proposed method is implemented on a wireless sensor node and tested successfully for detecting an outer race fault of a rolling bearing. The results show that the frequency resolution of the envelope spectrum is improved by 8 times while the data transmission remains at a low rate.
AB - In this paper, an accurate envelope analysis algorithm is developed for a wireless sensor node. Since envelope signals employed in condition monitoring often have narrow frequency bandwidth, the proposed algorithm down-samples and cascades the analyzed envelope signals to construct a relatively long one. Thus, a relatively higher frequency resolution can be obtained by calculating the spectrum of the cascaded signal. In addition, a 50% overlapping scheme is applied to avoid the distortions caused by Hilbert transform based envelope calculation. The proposed method is implemented on a wireless sensor node and tested successfully for detecting an outer race fault of a rolling bearing. The results show that the frequency resolution of the envelope spectrum is improved by 8 times while the data transmission remains at a low rate.
KW - Bearing fault diagnosis
KW - Cascading
KW - Envelope analysis
KW - Overlap processing
KW - Wireless sensor network
UR - http://www.scopus.com/inward/record.url?scp=84927674061&partnerID=8YFLogxK
U2 - 10.1007/978-3-319-09918-7_68
DO - 10.1007/978-3-319-09918-7_68
M3 - Conference contribution
VL - 23
SP - 765
EP - 775
BT - Vibration Engineering and Technology of Machinery - Proceedings of VETOMAC X, 2014
PB - Kluwer Academic Publishers
ER -