The wavelet cross-correlation method was used to analyze the unsteady signals of the flow of the model open pump sump, which include pressure signal, vibration signal and acoustic signal. The continuous wavelet transform was done first to find the signal distribution at various periods and at any time, then the wavelet cross-correlation was used to find the relationship between the signals taken two a two. Through comparing the result of wavelet cross-correlation and the result of classic cross-correlation, one can find the correlation scale of any two unsteady signals (pressure-vibration, pressure-noise, and vibration-noise). The signal on the correlation scale was reconstruct and its characteristics were obtained using classical signal analysis method same as the structural similarity of a arbitrary two signals.
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ASME 2004 Heat Transfer/Fluids Engineering Summer Conference
July 11–15, 2004
Charlotte, North Carolina, USA
Conference Sponsors:
- Heat Transfer Division and Fluids Engineering Division
ISBN:
0-7918-4690-3
PROCEEDINGS PAPER
Wavelet Cross-Correlation Analysis of the Unsteady Signals of the Flow in the Open Sump
Mansa Kante,
Mansa Kante
Tsinghua University, Beijing, China
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Shuhong Liu,
Shuhong Liu
Tsinghua University, Beijing, China
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Daqing Zhou
Daqing Zhou
Tsinghua University, Beijing, China
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Mansa Kante
Tsinghua University, Beijing, China
Yulin Wu
Tsinghua University, Beijing, China
Yong Li
Tsinghua University, Beijing, China
Shuhong Liu
Tsinghua University, Beijing, China
Daqing Zhou
Tsinghua University, Beijing, China
Paper No:
HT-FED2004-56207, pp. 187-191; 5 pages
Published Online:
February 24, 2009
Citation
Kante, M, Wu, Y, Li, Y, Liu, S, & Zhou, D. "Wavelet Cross-Correlation Analysis of the Unsteady Signals of the Flow in the Open Sump." Proceedings of the ASME 2004 Heat Transfer/Fluids Engineering Summer Conference. Volume 1. Charlotte, North Carolina, USA. July 11–15, 2004. pp. 187-191. ASME. https://doi.org/10.1115/HT-FED2004-56207
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