Journal ArticleDOI
Analysis of leakage in high pressure pipe using acoustic emission method
Amir Mostafapour,S. Davoudi +1 more
Reads0
Chats0
TLDR
In this paper, the authors used non-linear theory for cylindrical shell to derive motion equation under simply supported boundary condition and solved the motion equation by using Galerkin method that resulted in a system of nonlinear equations with 6 degrees of freedom.About:
This article is published in Applied Acoustics.The article was published on 2013-03-01. It has received 119 citations till now. The article focuses on the topics: End correction & Acoustic emission.read more
Citations
More filters
Journal ArticleDOI
Natural gas pipeline leak aperture identification and location based on local mean decomposition analysis
TL;DR: A leak aperture recognition and location method based on root mean square (RMS) entropy of local mean deposition and Wigner–Ville time-frequency analysis that can effectively identify different leak apertures and the leak location accuracy is better than that of the direct cross-correlation method.
Journal ArticleDOI
Leak detection in water distribution networks: an introductory overview
Samer El-Zahab,Tarek Zayed +1 more
TL;DR: This research work provides a thorough investigation into the history of leak detection in pipelines by surveying the web of knowledge database and visualizing the outputs using visualization software VOSviewer and CiteNetExplorer.
Journal ArticleDOI
Leak location in gas pipelines using cross-time–frequency spectrum of leakage-induced acoustic vibrations
TL;DR: In this paper, a location scheme based on cross-time-frequency spectrum (CTFS) is intended for the gas-leak-induced acoustic waves with frequency-varying acoustic speed.
Journal ArticleDOI
Energy distribution and fractal characterization of acoustic emission (AE) during coal deformation and fracturing
TL;DR: In this paper, the acoustic emission (AE) signals of coal ruptures were evaluated under the condition of uniaxial compression, and then the spectral, energy and fractal features of the AE waveform under different stress levels were analyzed.
Journal ArticleDOI
An improved variational mode decomposition method based on particle swarm optimization for leak detection of liquid pipelines
Diao Xu,Diao Xu,Juncheng Jiang,Shen Guodong,Chi Zhaozhao,Zhirong Wang,Lei Ni,Ahmed Mebarki,Ahmed Mebarki,Haitao Bian,Yongmei Hao +10 more
TL;DR: The results show that the proposed PSO-VMD method is capable of de-noising background noise and appears to be efficient since the classification accuracy of the SVM method reaches up to 100% in identifying the size of the leak.
References
More filters
Journal ArticleDOI
Characteristics of wave propagation and energy distributions in cylindrical elastic shells filled with fluid
Chris R. Fuller,Frank Fahy +1 more
TL;DR: In this article, the dispersion behavior and energy distributions of free waves in thin walled cylindrical elastic shells filled with fluid are investigated, and a non-dimensional equation which determines the distribution of vibrational energy between the shell wall and the contained fluid is derived.
Journal ArticleDOI
Acoustical characteristics of leak signals in plastic water distribution pipes
Osama Hunaidi,Wing T. Chu +1 more
TL;DR: In this paper, the authors investigated the acoustic characteristics of leak signals in plastic pipes, including the frequency content of sound or vibration signals as a function of leak type, flow rate, pipe pressure and season, the determination of the attenuation rate, and the variation of propagation velocity with frequency.
Journal ArticleDOI
Non-linear dynamics and stability of circular cylindrical shells containing flowing fluid. part i: stability
TL;DR: In this article, the authors investigated the non-linear dynamics and stability of simply supported, circular cylindrical shells containing inviscid incompressible fluid flow, and showed that the system loses stability by divergence.
Journal ArticleDOI
Flutter of thin cylindrical shells conveying fluid
TL;DR: In this article, the authors present a theory for its analysis which is based on Flugge's equations for the description of shell motion and a classical potential-flow theory for the coupled hydrodynamic forces.
Nonlinear flexural vibrations of thin-walled circular cylinders
TL;DR: In this article, nonlinear flexural vibration analysis using Galerkin method in thin-walled circular cylinders is performed using the Galerkins method in order to analyze the flexural properties of cylinders.