Recent developments in model-based fault detection and diagnostics of gas pipelines under transient conditions
Gas pipelines are prone to faults due to aging, corrosion, and external factors. Undetected
faults can result in injuries, damage to properties, and environmental contamination. Several …
faults can result in injuries, damage to properties, and environmental contamination. Several …
[HTML][HTML] Leakage detection in water distribution networks via 1D CNN deep autoencoder for multivariate SCADA data
HM Tornyeviadzi, R Seidu - Engineering Applications of Artificial …, 2023 - Elsevier
Leakages are undesirable events in water distribution networks (WDNs) with mostly
unknown incident time making it extremely difficult to accurately label leaks in distribution …
unknown incident time making it extremely difficult to accurately label leaks in distribution …
[HTML][HTML] Consistency index-based sensor fault detection system for nuclear power plant emergency situations using an LSTM network
J Choi, SJ Lee - Sensors, 2020 - mdpi.com
A nuclear power plant (NPP) consists of an enormous number of components with complex
interconnections. Various techniques to detect sensor errors have been developed to …
interconnections. Various techniques to detect sensor errors have been developed to …
Actuator fault estimation based on a proportional-integral observer with nonquadratic Lyapunov functions
J Guzman, FR López-Estrada… - … Journal of Systems …, 2021 - Taylor & Francis
This work proposes a proportional-integral fault estimation observer for nonlinear systems
by means of convex structures. Unlike the traditional approaches that consider quadratic …
by means of convex structures. Unlike the traditional approaches that consider quadratic …
Selective weighted multi-scale morphological filter for fault feature extraction of rolling bearings
J Yu, C Xiao, T Hu, Y Gao - ISA transactions, 2023 - Elsevier
Morphological filtering shows effectiveness in vibration signal analysis because of its
simplicity and efficiency. Considering that different structural elements have different effects …
simplicity and efficiency. Considering that different structural elements have different effects …
Leak detection and location of flanged pipes: An integrated approach of principle component analysis and guided wave mode
X Diao, Z Chi, J Jiang, A Mebarki, L Ni, Z Wang, Y Hao - Safety Science, 2020 - Elsevier
As flanged pipes have a crucial role in oil and gas transportation, accidental leaks and their
detection are of great importance, and represent a great concern in safety management of …
detection are of great importance, and represent a great concern in safety management of …
[HTML][HTML] A comprehensive fault diagnosis method for rolling bearings based on refined composite multiscale dispersion entropy and fast ensemble empirical mode …
W Zhang, J Zhou - Entropy, 2019 - mdpi.com
This study presents a comprehensive fault diagnosis method for rolling bearings. The
method includes two parts: the fault detection and the fault classification. In the stage of fault …
method includes two parts: the fault detection and the fault classification. In the stage of fault …
[HTML][HTML] Leak detection in gas mixture pipelines under transient conditions using Hammerstein model and adaptive thresholds
Conventional leak detection techniques require improvements to detect small leakage (<
10%) in gas mixture pipelines under transient conditions. The current study is aimed to …
10%) in gas mixture pipelines under transient conditions. The current study is aimed to …
[HTML][HTML] AIN-based MEMS (micro-electro-mechanical system) hydrophone sensors for IoT water leakage detection system
There is an urgent need for industrial Internet of things (IoT) solutions to deploy a smart
hydrophone sensor grid to monitor pipeline health and to provide an accurate prediction in …
hydrophone sensor grid to monitor pipeline health and to provide an accurate prediction in …
[HTML][HTML] Fault feature extraction of hydraulic pumps based on symplectic geometry mode decomposition and power spectral entropy
Z Zheng, G Xin - Entropy, 2019 - mdpi.com
Aiming at fault feature extraction of a hydraulic pump signal, a new method based on
symplectic geometry mode decomposition (SGMD) and power spectral entropy (PSE) is …
symplectic geometry mode decomposition (SGMD) and power spectral entropy (PSE) is …