Results 71 to 80 of about 73,405 (211)

Implementation of a model based fault detection and diagnosis for actuation faults of the Space Shuttle main engine [PDF]

open access: yes
In a previous study, Guo, Merrill and Duyar, 1990, reported a conceptual development of a fault detection and diagnosis system for actuation faults of the space shuttle main engine. This study, which is a continuation of the previous work, implements the
Duyar, A.   +3 more
core   +1 more source

A new method of vibration analysis for the diagnosis of impeller in a centrifugal pump [PDF]

open access: yes, 2014
Centrifugal pumps are widely used in many important industries such as power generation plants, chemical processes and petroleum refiners. The condition monitoring of centrifugal pumps is highly regarded by many researchers and users to minimize ...
Abdulrahman, Albraik   +5 more
core  

Meta-heuristic algorithms in car engine design: a literature survey [PDF]

open access: yes, 2015
Meta-heuristic algorithms are often inspired by natural phenomena, including the evolution of species in Darwinian natural selection theory, ant behaviors in biology, flock behaviors of some birds, and annealing in metallurgy.
Tayarani-N, Mohammad-H.   +2 more
core   +2 more sources

Fault Diagnosis Expert System for Critical Systems and Components of “Shenhua” Electric Locomotive

open access: yesKongzhi Yu Xinxi Jishu, 2020
In view of the difficulties and poor efficiency of manual troubleshooting of locomotive faults, this paper proposed a method for correlative analyses of traction converter faults and train level faults. The method is based on a fault diagnosis model that
GAO Yongqiang
doaj  

An Intelligent Fault Diagnosis System for Machine Tools

open access: yesInternational Journal of Automation and Smart Technology, 2014
An automatic intelligent system is developed to diagnose shaft fault types. Features related to shaft faults are extracted from vibration signals to effectively identify the corresponding fault condition. Feature extraction is accomplished using Fourier Transform, empirical mode decomposition (EMD) and multi-scale entropy (MSE). Through the EMD method,
Chia Wang, Wei-Yen Lin, Hong-Tsu Young
openaire   +1 more source

A route generator concept for aircraft onboard fault monitoring [PDF]

open access: yes
Because of the increasingly complex environments in which the flight crews of commercial aviation aircraft must operate, a research effort is currently underway at NASA Langley Research Center to investigate the potential benefits of intelligent cockpit ...
Abbott, K. H., Palmer, M. T.
core   +1 more source

The role of intelligent systems in delivering the smart grid [PDF]

open access: yes, 2010
The development of "smart" or "intelligent" energy networks has been proposed by both EPRI's IntelliGrid initiative and the European SmartGrids Technology Platform as a key step in meeting our future energy needs.
Catterson, Victoria   +2 more
core   +1 more source

Transformer-based intelligent fault diagnosis methods of mechanical equipment: A survey

open access: yesOpen Physics
Transformer is extensively employed in natural language processing, and computer vision (CV), with the self-attention structure. Due to its outstanding long-range dependency modeling and parallel computing capability, some leading researchers have ...
Wang Rongcai   +4 more
doaj   +1 more source

Intelligent Fault-Diagnosis System for Acoustic Logging Tool Based on Multi-Technology Fusion

open access: yesSensors, 2019
To improve the performance of acoustic logging tool in detecting three-dimensional formation, larger and more complicated transducer arrays have been used, which will greatly increase the difficulty of fault diagnosis during tool assembly and maintenance.
Xiaolong Hao   +4 more
doaj   +1 more source

Scheduling lessons learned from the Autonomous Power System [PDF]

open access: yes
The Autonomous Power System (APS) project at NASA LeRC is designed to demonstrate the applications of integrated intelligent diagnosis, control, and scheduling techniques to space power distribution systems.
Ringer, Mark J.
core   +1 more source

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