Determination of the linear frequency response of single pipelines using persistent transient excitation: a numerical investigation
Files
(Accepted version)
Date
2013
Authors
Gong, J.
Simpson, A.
Lambert, M.
Zecchin, A.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Journal of Hydraulic Research, 2013; 51(6):728-734
Statement of Responsibility
Jinzhe Gong, Angus R. Simpson, Martin F. Lambert & Aaron C. Zecchin
Conference Name
Abstract
The linear frequency response of a fluid-filled pipeline extracted by fluid transient waves can be used to detect leaks in pipelines. This research conducts numerical analysis on how to accurately determine the linear frequency response diagram (FRD) of single pipelines using persistent transient pressure signals. Two types of persistent signals, the maximum-length binary sequence and the inverse-repeat sequence (IRS), are compared in terms of the accuracy in estimating the linear response of a pipeline at resonant frequencies. The IRS is found to be more appropriate for identifying the linear portion of the FRD of a pipeline, since its antisymmetric property can supress part of the nonlinear response. Numerical simulations are conducted to verify the findings. © 2013 © 2013 International Association for Hydro-Environment Engineering and Research.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
© 2013 International Association for Hydro-Environment Engineering and Research