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Type: Journal article
Title: Experimental verification of the frequency response method for pipeline leak detection
Author: Lee, P.
Lambert, M.
Simpson, A.
Vitkovsky, J.
Liggett, J.
Citation: Journal of Hydraulic Research, 2006; 44(5):693-707
Publisher: Int Assn Hydraulic Research
Issue Date: 2006
ISSN: 0022-1686
Statement of
Pedro J. Lee, Martin F. Lambert, Angus R. Simpson, John P. Vitkovsky and James Liggett
Abstract: This paper presents an experimental validation of the frequency response method for pipeline leak detection. The presence of a leak within the pipe imposes a periodic pattern on the resonant peaks of the frequency response diagram. This pattern can be used as an indicator of leaks without requiring the 'no-leak' benchmark for comparison. In addition to the experimental verification of the technique, important issues, such as the procedure for frequency response extraction and methods for dealing with frequency dependent friction are considered in this paper. In this study, transient signals are generated by a side-discharge solenoid valve. Non-linearity errors associated with large valve movements can be prevented by a change in the input parameter to the system. The optimum measuring and generating position for two different system boundary configurations - a symmetric and an antisymmetric system - are discussed in the paper and the analytical expression for the leak induced pattern in these two cases is derived.
Keywords: Frequency response
Linear systems
Water pipelines
Rights: © International Association Of Hydraulic Engineering and Research
DOI: 10.1080/00221686.2006.9521718
Appears in Collections:Aurora harvest 2
Civil and Environmental Engineering publications
Environment Institute publications

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