Results 21 to 30 of about 30,992 (298)

A self-validating control system based approach to plant fault detection and diagnosis [PDF]

open access: yes, 2001
An approach is proposed in which fault detection and diagnosis (FDD) tasks are distributed to separate FDD modules associated with each control system located throughout a plant.
Chen, J., Howell, J.
core   +1 more source

Fault Detection and Diagnosis for Plasticizing Process of Single-Base Gun Propellant Using Mutual Information Weighted MPCA under Limited Batch Samples Modelling

open access: yesMachines, 2021
Aiming at the lack of reliable gradual fault detection and abnormal condition alarm and evaluation ability in the plasticizing process of single-base gun propellant, a fault detection and diagnosis method based on normalized mutual information weighted ...
Mingyi Yang   +6 more
doaj   +1 more source

The fault detection and severity diagnosis of rolling element bearings using modulation signal bispectrum [PDF]

open access: yes
The rolling element bearing is a key part in many mechanical equipment. The accurate and timely diagnosis of its faults is critcal for predictive maintenance. Vibration signals from a defective bearing with a localized fault contain a series of impulsive
Gu, Fengshou   +3 more
core   +3 more sources

Rolling Bearing Fault Monitoring for Sparse Time-Frequency Representation and Feature Detection Strategy

open access: yesEntropy, 2022
Data-driven fault diagnosis methods for rotating machinery have developed rapidly with the help of deep learning methods. However, traditional intelligent fault diagnosis methods still have some limitations in fault feature extraction and the latest ...
Jiahui Tang   +3 more
doaj   +1 more source

Infrared thermography‐based diagnostics on power equipment: State‐of‐the‐art

open access: yesHigh Voltage, 2021
As a non‐contact temperature distribution measurement method, infrared thermography (IRT) has emerged as an indispensable tool in condition monitoring and fault diagnosis of electrical equipment based on the absolute and relative temperature values ...
Changjie Xia   +6 more
doaj   +1 more source

A Survey on Fault Diagnosis of Rolling Bearings

open access: yesAlgorithms, 2022
The failure of a rolling bearing may cause the shutdown of mechanical equipment and even induce catastrophic accidents, resulting in tremendous economic losses and a severely negative impact on society.
Bo Peng   +4 more
doaj   +1 more source

A Study of Motor Bearing Fault Diagnosis using Modulation Signal Bispectrum Analysis of Motor Current Signals [PDF]

open access: yes, 2013
Failure of induction motors are a large concern due to its influence over industrial production. Motor current signature analysis (MCSA) is common practice in industry to find motor faults. This paper presents a new approach to detection and diagnosis of
Chen, Zhi   +5 more
core   +1 more source

Fault Detection Based on Multi-Dimensional KDE and Jensen–Shannon Divergence

open access: yesEntropy, 2021
Weak fault signals, high coupling data, and unknown faults commonly exist in fault diagnosis systems, causing low detection and identification performance of fault diagnosis methods based on T2 statistics or cross entropy. This paper proposes a new fault
Juhui Wei   +4 more
doaj   +1 more source

A Desk-top tutorial Demonstration of Model-based Fault Detection and Diagnosis [PDF]

open access: yes, 2007
In this paper, a demonstration on the model-based approach for fault detection has been presented. The aim of this demo is to provide students a desk-top tool to start learning model-based approach.
Gu, Fengshou   +3 more
core   +3 more sources

Fault Detection and Fault Diagnosis Techniques for Lookup Table FPGAs [PDF]

open access: yesVLSI Design, 2001
In this paper, we present a novel fault detection and fault diagnosis technique for Field Programmable Gate Arrays (FPGAs). The cell is configured to implement a bijective function to simplify the testing of the whole cell array. The whole chip is partitioned into disjoint one‐dimensional arrays of cells.
Shyue-Kung Lu   +2 more
openaire   +2 more sources

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