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Acoustic Emission-Based Small Leak Detection of Propulsion System Pipeline of Sounding Rocket
Joint Authors
Dong, Lili
Liu, Wenjing
Wang, Shaofeng
Gao, Lin
Cao, Jianguo
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-07-31
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
For pipes connected by pipe joints, leaks in the pipeline system are likely to occur at the pipe joints as opposed to the tube itself.
Thus, early detection is critical to ensure the safety of the pipeline system.
Based on acoustic emission (AE) techniques, this paper presents an experimental research on small leak detection in gas distribution pipelines due to loosening of the pipe joint connection.
Firstly, the acoustic characteristics of leak signals are studied; then, features of signals are extracted.
Finally, a classifier based on the support vector machine (SVM) technology is established, and the qualified features are selected to detect the leak.
It is verified that the main frequency of the AE small leak signal due to the failure of the pipe joint is focused in the range of 33–45 kHz, and the algorithms based on SVM with kernel functions all can reach a better estimation accuracy of 98% using the feature “envelope area” or the feature set {standard deviation (STD), root mean square (RMS), energy, average frequency}.
American Psychological Association (APA)
Gao, Lin& Dong, Lili& Cao, Jianguo& Wang, Shaofeng& Liu, Wenjing. 2020. Acoustic Emission-Based Small Leak Detection of Propulsion System Pipeline of Sounding Rocket. Shock and Vibration،Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1213118
Modern Language Association (MLA)
Gao, Lin…[et al.]. Acoustic Emission-Based Small Leak Detection of Propulsion System Pipeline of Sounding Rocket. Shock and Vibration No. 2020 (2020), pp.1-9.
https://search.emarefa.net/detail/BIM-1213118
American Medical Association (AMA)
Gao, Lin& Dong, Lili& Cao, Jianguo& Wang, Shaofeng& Liu, Wenjing. Acoustic Emission-Based Small Leak Detection of Propulsion System Pipeline of Sounding Rocket. Shock and Vibration. 2020. Vol. 2020, no. 2020, pp.1-9.
https://search.emarefa.net/detail/BIM-1213118
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1213118