Results 21 to 30 of about 245 (131)

Noise Source Identification Method for a Carpet Tufting Machine Based on CEEMDAN-AIC

open access: yesShock and Vibration, 2021
In recent years, the noise reduction research of the carpet tufting machine has been developing slowly. The research gaps of the existing work mainly focus on the noise source identification for the carpet tufting machine.
Wang Haohui, Sheng Xiaowei, Xu Yang
doaj   +1 more source

Rolling bearing fault diagnosis based on MEEMD sample entropy and SSA-SVM

open access: yesJournal of Physics: Conference Series, 2021
Abstract The penalty parameter (c) and kernel parameter (g) contained in Support Vector Machine (SVM) cannot be adaptively selected according to actual samples, which results in low classification accuracy and slow convergence speed. A novel sparrow search algorithm was used to optimize the parameters of SVM classifier.
Xuguang Li, Liyou Fu
openaire   +1 more source

Fault Detection in Three-phase Induction Motor based on Data Acquisition and ANN based Data Processing [PDF]

open access: yes, 2022
The main objective of this paper is to investigate how a failure in the functioning of a normal electrical system represented by a three-phase asynchronous motor will modify the voltages and currents present in the system and if it is possible to design ...
Ghincu, Remus Vladimir   +4 more
core   +2 more sources

Feature Extraction Algorithm Using a Correlation Coefficient Combined With the VMD and Its Application to the GPS and GRACE

open access: yesIEEE Access, 2021
To improve the reliability of the Global Positioning System (GPS) and Gravity Recovery and Climate Experiment (GRACE) feature extraction, this paper uses a correlation coefficient combined with the traditional variational mode decomposition (VMD ...
Yifan Shen   +4 more
doaj   +1 more source

Wind power prediction based on WT-BiGRU-attention-TCN model [PDF]

open access: yes, 2023
Accurate wind power prediction is crucial for the safe and stable operation of the power grid. However, wind power generation has large random volatility and intermittency, which increases the difficulty of prediction.
Chaozhi Yang, Dianwei Chi
core   +1 more source

Marine SINS Self-Alignment Method in Complex Interference Environment Based on MEEMD Algorithm

open access: yesElectronics, 2022
It is difficult to rapidly and accurately achieve alignment under complicated interferential environmental conditions with a marine strapdown inertial navigation system (SINS) subject to angular swaying interference and linear motion interference. To solve this problem, an SINS self-alignment algorithm in a complex interference environment is presented
Jinlong Xing, Gongliu Yang, Tijing Cai
openaire   +1 more source

Remaining Useful Life Estimation Combining Two-Step Maximal Information Coefficient and Temporal Convolutional Network With Attention Mechanism

open access: yesIEEE Access, 2021
Remaining useful life (RUL) estimation has received extensive attention in many fields, which provides improved decision-making for condition-based maintenance (CBM) and enhances the stability of engineered systems. However, the effective construction of
Yalan Jiang   +4 more
doaj   +1 more source

Causality in Control Systems Based on Data-Driven Oscillation Identification

open access: yesApplied Sciences, 2022
This paper addresses the subject of causality analysis using simulation data and data collected from a real control system. Simulated data includes Gaussian and Cauchy noise signals.
Michał J. Falkowski   +2 more
doaj   +1 more source

The multi-dimensional ensemble empirical mode decomposition (MEEMD)

open access: yesJournal of Thermal Analysis and Calorimetry, 2017
With a view to map the health status of mosaics, non-destructive testing methods ought to be used for data collection. Among these, the infrared thermography is highly recommended since it is non-contact, non-intrusive, non-invasive and able to convert the invisible thermal energy into a video signal, in which the energy level is usually correlated ...
Yuan Yao   +4 more
openaire   +2 more sources

Time-frequency analysis of 3D ship-wave fields in martime waterways [PDF]

open access: yes, 2018
In the last 15 years an increased number of serious damages of protective structures such as groins and revetments have been observed in maritime waterways.
Brühl, Markus, Shet, Rahi A.
core   +2 more sources

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