Acoustic emission technology is mostly used in corrosion detection of the atmospheric vertical storage tank bottom, but the evaluation results are always affected by the complex sound sources. In this paper, wavelet neural network is used to identify the acoustic emission signals from different types of tanks. Using wavelet transform and threshold denoising to denoise the detection signals, after wavelet packet decomposition, each node’s energy distribution and the feature vectors of extracted corrosion signals of the tank floor are selected as the input. At last, the compact-type wavelet neural network is chosen to recognize different AE signals. The result of magnetic flux leakage test proves that this method can improve acoustic emission signal analysis precision and achieve the accurate corrosion evaluation based on AE technology.
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ASME 2011 Pressure Vessels and Piping Conference
July 17–21, 2011
Baltimore, Maryland, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-4451-9
PROCEEDINGS PAPER
Study of Tank Acoustic Emission Testing Signals Analysis Method Based on Wavelet Neural Network
Wei Li,
Wei Li
Northeast Petroleum University, Daqing, Heilongjiang, China
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Guang Dai,
Guang Dai
Northeast Petroleum University, Daqing, Heilongjiang, China
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Yali Wang,
Yali Wang
Northeast Petroleum University, Daqing, Heilongjiang, China
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Feifei Long
Feifei Long
Northeast Petroleum University, Daqing, Heilongjiang, China
Search for other works by this author on:
Wei Li
Northeast Petroleum University, Daqing, Heilongjiang, China
Guang Dai
Northeast Petroleum University, Daqing, Heilongjiang, China
Yali Wang
Northeast Petroleum University, Daqing, Heilongjiang, China
Feifei Long
Northeast Petroleum University, Daqing, Heilongjiang, China
Paper No:
PVP2011-57342, pp. 699-703; 5 pages
Published Online:
May 21, 2012
Citation
Li, W, Dai, G, Wang, Y, & Long, F. "Study of Tank Acoustic Emission Testing Signals Analysis Method Based on Wavelet Neural Network." Proceedings of the ASME 2011 Pressure Vessels and Piping Conference. Volume 1: Codes and Standards. Baltimore, Maryland, USA. July 17–21, 2011. pp. 699-703. ASME. https://doi.org/10.1115/PVP2011-57342
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