Results 11 to 20 of about 77,768 (302)

Comprehensive analysis of aero-engine vibration signals based on wavelet transform method

open access: yesEURASIP Journal on Advances in Signal Processing, 2023
A single type of signal processing means that it is difficult to analyze vibration signals comprehensively and effectively. By comprehensively using wavelet analysis techniques, a comprehensive and in-depth study of aero-engine vibration conditions is ...
Mai Xin   +6 more
doaj   +2 more sources

Condition monitoring of valve clearance fault on a small four strokes petrol engine using vibration signals [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2010
This paper studies condition monitoring technique of a small four strokes, single cylinder petrol engine using vibrationsignal analysis based on time domain, crank angle domain, and signal energy.
Songpon Klinchaeam   +1 more
doaj   +1 more source

Convolutional Neural Network-Based Transformer Fault Diagnosis Using Vibration Signals. [PDF]

open access: yesSensors (Basel), 2023
Fast and accurate fault diagnosis is crucial to transformer safety and cost-effectiveness. Recently, vibration analysis for transformer fault diagnosis is attracting increasing attention due to its ease of implementation and low cost, while the complex ...
Li C   +5 more
europepmc   +3 more sources

Deep Learning Approach for Vibration Signals Applications. [PDF]

open access: yesSensors (Basel), 2021
This study discusses convolutional neural networks (CNNs) for vibration signals analysis, including applications in machining surface roughness estimation, bearing faults diagnosis, and tool wear detection.
Chen HY, Lee CH.
europepmc   +2 more sources

A New Zoning Method of Blasting Vibration Based on Energy Proportion and Its SVM Classification Models

open access: yesShock and Vibration, 2021
The blasting vibration signals show obvious zoning propagation characteristics. Because of not considering the specific influences of geological and topographical conditions, the existing zoning methods of blasting vibration cannot fully describe the ...
Haixia Wei   +5 more
doaj   +1 more source

A Method Combining Fractal Analysis and Single Channel ICA for Vibration Noise Reduction

open access: yesShock and Vibration, 2021
Aiming at the problem that real engineering vibration signals are interfered by strong noise, this paper proposes a method combining single channel-independent component analysis (SCICA) and fractal analysis (FD) to reduce the effect of noise on the time-
Quanbo Lu, Mei Li
doaj   +1 more source

Frequency spectrum and energy refinement characteristics of blasting vibration signals in raw water pipeline tunnel excavation

open access: yesFrontiers in Earth Science, 2022
The analysis of time-frequency variation and energy refinement characteristics of blasting vibration signals has contributed to understanding the propagation law of blasting vibration wave and reducing the possible losses. Combined with the measured data
Liang Zhang   +3 more
doaj   +1 more source

VIBRATION ASSESSMENT OF TRACTOR OPERATOR BASED ON VIBRATION SIGNALS

open access: yesINMATEH Agricultural Engineering, 2023
Operator fatigue during work with agricultural machinery is a significant factor contributing to fatal accidents in Greece. Workers operating agricultural machinery, especially those working with tractors and off-road machines, constitute one of the most hazard-prone groups due to mechanical vibrations transmitted from the ground to the operators ...
Christos I. DIMITRIADIS   +4 more
openaire   +1 more source

Detection of defects in a bearing by analysis of vibration signals

open access: yes, 2023
This work presents the analysis of vibration signals by an approach consists of several mathematical tools more elaborate such as the Hilbert transform, kurtogram, which allows the detection of vibration defects in a simple and accurate way. The steps or
Karim Bouaouiche   +5 more
core   +1 more source

Fault diagnosis of planetary gearbox based on multi-information fusion and convolutional neural network

open access: yesGong-kuang zidonghua, 2022
The fault diagnosis method of planetary gearbox based on machine learning relies on the artificial selection of the eigenvectors. The quality of eigenvectors selection largely determines the accuracy of the diagnosis method.
SHI Zhiyuan, TENG Hu, MA Chi
doaj   +1 more source

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